The Blackcoat's Daughter (2017) Timeline Explained – Every Event in Order

Kat is possessed by a demonic entity that has been manipulating her throughout the film. The demon convinces her that her parents are going to die and urges her to commit murder as part of a ritual. After learning her parents have died in a car crash (which the demon orchestrated), Kat's mental break becomes complete. She murders the two nuns in a trance-like state, then attacks Rose after confirming she is not pregnant, removing anyone who stands between her and the demonic summoning she believes will reunite her with the entity.

Foreshadowing: The demon appears to Kat early on, warning her about her parents' deaths and telling her that "others will die" before she can be with it.

• kat
• killing
• nuns
• rose
• demon
• possession
• bramford

Joan is actually Kat in disguise. Nine years after the events at Bramford, Kat has escaped from the mental institution where she was institutionalized after being shot by police. She murdered a woman named Joan and assumed her identity. This explains why Joan arrives at Bramford in the present timeline, she is Kat returning to the place where she was possessed.

Foreshadowing: The real Joan is never seen in the film; only the woman wearing her identity appears.

• joan
• kat
• identity
• disguise
• real name

The demon is an ancient evil entity that inhabits Bramford Academy's boiler room. It appears to Kat as a horned shadow and speaks in a gravelly voice, manipulating her into committing murders so it can be summoned. The demon feeds on孤独 and uses psychological manipulation to control its victims. It promises Kat a connection but ultimately abandons her when she needs it most.

Foreshadowing: The demon tells Kat that her parents will die and that she must "open the way" for it through murder.

• demon
• possession
• horned shadow
• bramford
• boiler room

After escaping from the mental institution, Kat (now posing as Joan) returns to Bramford to attempt to summon the demon that once possessed her. She believes that by returning to the boiler room where her transformation began, she can reconnect with the entity that gave her purpose during her original killing spree. She hopes the demon will fill the void she has felt since being separated from it.

Foreshadowing: At the end of the original timeline, Kat begs the demon not to leave her during the exorcism, showing her desperate attachment to the entity.

• joan
• kat
• return
• bramford
• summoning
• demon

Kat's parents die in a car accident, exactly as the demon prophesied. The demon manipulates Kat into believing it has some connection to her parents' deaths, using this tragedy to accelerate her psychological break and push her toward murder. The deaths happen off-screen during winter break, and the news reaches the academy shortly before Kat's violent outburst.

Foreshadowing: The demon appears to Kat before the break, showing her a vision of her parents' deaths in a car crash.

• kat
• parents
• death
• car accident
• demon

When "Joan" (Kat) attempts to summon the demon in the boiler room nine years later, she finds the boiler cold and unattended, the school has been closed and abandoned. Without the active presence of the demonic entity in that location, her summoning fails. The demon does not answer her call, leaving her utterly alone. This reflects the film's central theme of loneliness and abandonment, the demon used Kat for its purposes and then discarded her.

Foreshadowing: The boiler room was the site of Kat's original possession and killings, but nine years of abandonment have severed the connection.

• demon
• summoning
• boiler room
• bramford
• failed

Bill and Linda are Rose's parents. Their daughter Rose died nine years ago (the same night Kat went on her killing spree at Bramford). Bill tells "Joan" that she reminds him of his late daughter, which is why they offer her a ride. When Joan realizes who they are, she murders them, she is essentially killing Rose's parents, completing a dark circle of tragedy connected to that fateful night.

Foreshadowing: Bill mentions his daughter's name is Rose early in their interaction with Joan, creating dramatic irony since the audience knows what happened.

• bill
• linda
• rose
• parents
• daughter
• killing

Kat shouts "Hail Satan!" while kneeling in the boiler room surrounded by her victims as a final declaration of allegiance to the demon possessing her. This is not a statement of personal belief but rather the culmination of her possession and psychological transformation. She has fully surrendered to the demonic entity and views herself as its servant. The phrase serves as a chilling exclamation of her corrupted state.

Foreshadowing: Throughout the film, the demon instructs Kat to open the way for it through murder, framing her actions as a demonic ritual.

• kat
• hail satan
• possession
• demon
• police

Rose suspects she might be pregnant and lies to her parents about the vacation dates to buy time to figure out if she is. However, after Kat's violent outbreak at breakfast, Rose confirms she has gotten her period, indicating she is not actually pregnant. This revelation comes just before Kat attacks and kills her, removing the pregnancy subplot as a factor in the tragedy.

Foreshadowing: Rose's concern about pregnancy is established early as she prepares to deceive her parents about the break dates.

• rose
• pregnancy
• period
• parents
• lie

The scar on Joan's shoulder is from being shot by a policeman. This is revealed when Joan showers at the motel with Bill and Linda, she was shot during the events that led to her institutionalization (the night Kat was shot at Bramford). The scar is physical evidence of the violence that transformed Kat into "Joan" and marks her violent past.

Foreshadowing: Kat was shot in the shoulder by a policeman during the climax at Bramford, establishing how she received the wound.

• joan
• scar
• shoulder
• shot
• policeman

The film presents three interwoven storylines: "Rose" shows the night of the murders in February; "Kat" shows the same events from Kat's possession perspective; and "Joan" shows the present day nine years later. These timelines converge at the reveal that Joan is actually Kat, creating a tragic loop where the possessed girl grows up and returns to repeat her violent past. The timelines are deliberately fragmented to build mystery before the connection becomes clear.

Foreshadowing: The Joan timeline shows her visiting the same locations and interacting with people connected to the original tragedy, gradually revealing the connection.

• timelines
• rose
• kat
• joan
• structure
• converge

During the exorcism, Kat experiences a moment of clarity and realizes the demon is abandoning her after using her to commit murder. She pleads for it to stay because she has become completely dependent on the entity, her identity and sense of purpose are intertwined with the demon. This moment establishes the psychological trauma that drives her to return nine years later, seeking to reconnect with the only thing that gave her meaning.

Foreshadowing: The demon has manipulated Kat throughout the film, convincing her they belong together and that murder will unite them.

• kat
• demon
• exorcism
• plead
• abandonment