I Know Who Killed Me is a 2007 American psychological horror thriller directed by Chris Sivertson and starring Lindsay Lohan. It is the second movie in which Lohan plays twins, the first being 1998's The Parent Trap.
The film's story revolves around a student's twin who was abducted and tortured by a sadistic serial killer. She manages to make it out alive but after she regains consciousness in the hospital she insists that her identity is that of another woman.
The film was released on July 27, 2007. It was nominated for nine Golden Raspberry Awards and won eight, setting a new record for most awards won in a single year until Jack and Jill (also a film in which the lead actor plays twins) won ten in 2012. Lohan tied with herself to win Worst Actress and also won Worst Screen Couple for both characters she portrayed.