Deadly Illusions (2021) Ending Explained – Final Scene & Meaning

Margaret is the violent alter ego of Grace, who suffers from dissociative identity disorder. Margaret was created from Grace's childhood trauma and has been manipulating the family and committing crimes while the innocent Grace remained unaware of her existence. Mary discovers this condition during the climactic confrontation when Margaret attempts to kill Mary's husband.

Foreshadowing: Earlier scenes show Grace having blackouts and behaving inconsistently, hinting at her fractured psyche.

• margaret
• alter ego
• dissociative identity disorder
• grace
• split personality

No, Grace is unaware of Margaret's existence and actions throughout the film. The innocent personality has no knowledge of the crimes committed by her violent alter ego, including the murder of Elaine. This is why Margaret is able to operate undetected for so long.

Foreshadowing: Grace often appears confused about events she supposedly witnessed, creating gaps in her memory that the film initially attributes to her mysterious behavior.

• grace
• margaret
• unaware
• innocent
• memory loss

The ending strongly suggests that the events depicted may be the contents of Mary's untitled new book rather than actual reality. She warned her publishers early on that she becomes a "different person" when writing, foreshadowing this twist. The shadowy figure fleeing Elaine's murder scene resembles Mary herself, suggesting she may have projected her own dark actions onto the character of Grace.

Foreshadowing: Mary tells her publishers she becomes a different person when writing, a warning that takes on new meaning at the resolution.

• mary novel
• fiction
• reality
• ending twist
• book within film

The film implies this is ambiguous but suggests Mary may have killed Elaine herself and projected the act onto Grace. The shadowy figure seen fleeing Elaine's murder scene physically resembles Mary, and her warning about becoming a different person when writing supports the theory that her fictional creation absorbed her own violent impulses.

Foreshadowing: The shadowy figure at Elaine's murder scene is never clearly identified, leaving doubt about who committed the act.

• elaine
• murder
• mary
• killer
• shadow figure

Grace is committed to a mental institution after Mary subdues her during the climactic confrontation. Margaret's attempt on Mary's husband's life triggers Mary's intervention, after which Grace is taken into psychiatric care rather than facing criminal charges, reflecting the film's focus on psychological rather than legal consequences.

Foreshadowing: The film builds toward this confrontation by showing escalating dangerous behaviors from the violent alter ego.

• grace
• institution
• committed
• mental hospital
• fate

The final scene shows a woman walking alone from what appears to be the institution, but the camera frames her in a way that makes her indistinguishable from both Mary and Grace. While it is most likely Mary leaving after visiting, the ambiguity reinforces the thematic mirroring between the two women and the blurred line between reality and fiction that defines the film's conclusion.

Foreshadowing: The visual similarity between Mary and Grace has been emphasized throughout, making the ending purposely unclear.

• final scene
• walking out
• ambiguous
• woman
• identity

The ambiguity serves the film's central theme of losing oneself in fantasy. By refusing to confirm what was real and what was fiction, the film forces viewers to experience the same disorientation Mary faces between her created world and reality. Both women retreat into alternate realities to escape their lives, Grace through her dissociative identity and Mary through immersive writing, leaving the ending appropriately unresolved.

Foreshadowing: The entire film has been building the blurred lines between Mary's writing and perceived reality.

• ambiguous ending
• interpretation
• theme
• illusion
• reality vs fiction

Mary tells her publishers early in the film that she becomes a different person when writing, warning them about the transformative power of her creative process. This detail foreshadows the ending's central twist, suggesting her new novel may be manifesting her own dark impulses through the character of Margaret, blurring the boundary between author and villain.

Foreshadowing: This warning is delivered directly to publishers in an early scene, establishing the thematic framework for the conclusion.

• different person
• writing
• foreshadowing
• author
• transformation

Mary intervenes during Margaret's attempt to kill her husband,_subduing the nanny just in time to prevent the murder. This confrontation reveals Margaret's true violent nature to Mary and leads directly to Grace's commitment to the institution, providing the immediate climax that resolves the physical threat to Mary's family.

Foreshadowing: Margaret's escalating violence throughout the film builds toward this Life-threatening confrontation.

• husband
• save
• attack
• mary
• climax

Mary's visit to the mental institution after the climax serves as a bridge between the chaotic events that preceded it and the ambiguous final scene. It confirms Grace's institutionalization while also visually echoing the film's thematic concern with psychological states, preparing viewers for the final twist about reality and fiction.

Foreshadowing: The hospital visit is shown as a somber, reflective moment acknowledging the lasting impact of the ordeal.

• hospital
• visit
• mental institution
• mary
• closure