Sissy

Young best friends Cecilia and Emma make a heartfelt pact to remain friends forever. This moment solidifies their bond and sets the stage for their tumultuous relationship in later years.

Fast forward to the present, where Cecilia has blossomed into a successful lifestyle vlogger. Her achievements contrast starkly with the unresolved tensions from her past.

While shopping at a pharmacy, Cecilia unexpectedly bumps into her old friend Emma, who affectionately refers to her as 'Sissy.' This encounter reignites feelings both nostalgic and uncomfortable for Cecilia.

Emma invites Cecilia to her engagement party and bachelorette party, which causes excitement mixed with apprehension for Cecilia. She sees this as an opportunity to reconnect but is haunted by unresolved feelings.

At Emma's party, the atmosphere changes when Fran mentions that Alex, Cecilia's childhood bully, will be attending. This news fills Cecilia with dread and stirs up painful memories.

On the way to the party, an accident occurs when their car hits a kangaroo. This incident unsettles Cecilia, leading her to confront memories of her childhood torment.

During the party, Alex belittles Cecilia, undermining her success as an influencer. Despite Emma's apologies, the tension continues to rise as Cecilia feels increasingly isolated and attacked.

The next day, while at the lake, Cecilia overhears Alex and others mocking her. A confrontation erupts, culminating in Cecilia accidentally knocking Alex unconscious with a rock amid a struggle for her phone.

In a panic, Cecilia drags Alex's body to the woods to bury her and begins a livestream meditation session over the grave. This bizarre act highlights Cecilia's mental disarray after the incident.

Cecilia encounters Jamie and pushes him off a cliff to prevent him from being a witness to her actions. The body count rises as Cecilia's desperation drives her to commit more violent acts.

While searching for Alex, Emma falls into a river, representing her struggle for survival amidst the chaos surrounding her. This scene emphasizes the increasing dangers they face.

Tracey confronts Cecilia about the events but is tragically drowned in a bathtub after Cecilia shoves her in. This cold moment showcases how far Cecilia has fallen into darkness.

After Cecilia's betrayal, Alex, still alive but severely injured, crawls out of her grave. In a chaotic situation, she mistakes Emma for Cecilia and accidentally causes Emma's injuries.

The police arrive during a standoff and misunderstand the situation, fatally shooting Alex as they believe she is the aggressor. This tragic misunderstanding encapsulates the film's themes of fear and violence.

Time passes, and Cecilia reclaims her life, emerging as a survivor of the so-called 'Alex Kutis Massacre.' She capitalizes on her experiences by promoting a book about her traumatic journey.