In the 1980 horror film "Pieces," the killer is revealed to be a young man named Paul, who is actually the main character's alter ego. Paul is a disturbed individual who murders women to create a human puzzle from their body parts. The film follows a detective's investigation into the gruesome murders at a Boston college, leading to the shocking revelation of the killer's identity and motivations. The film is known for its graphic violence and has gained a cult following over the years.

"Pieces" is a 1980 Spanish horror film directed by Juan Piquer Simón. Set in Boston, it follows a series of gruesome murders where a mysterious killer dismembers victims and assembles their body parts. The story revolves around a young college student who becomes embroiled in the investigation led by a detective trying to catch the murderer. The film is known for its graphic violence and has gained a cult following for its blend of slasher elements and dark humor, showcasing the themes of obsession and the macabre.

Yes, there is a movie titled "Girl in Pieces." Released in 2019, it's based on the novel by Kathleen Glasgow. The film follows the story of a teenage girl named Charlotte "Charlie" Davis, who struggles with her mental health after experiencing trauma and loss. As she navigates her challenges, including self-harm and the complexities of her relationships, she seeks healing and connection. The film addresses important themes of resilience and the impact of emotional scars.

"The Little Things," released in 2021, is not based on a true story but rather an original screenplay by writer and director John Lee Hancock. The film follows two detectives, played by Denzel Washington and Rami Malek, as they investigate a series of murders in 1990s Los Angeles, with themes of obsession and the burden of past mistakes. While the characters and events are fictional, the film draws inspiration from real-life criminal cases and the psychological toll of policing, which adds a sense of realism to the narrative.