American Psycho 2

American Psychoalso known as American Psycho II All American Girl is a 2002 directtovideo standalone sequel and spinoff of Mary Harrons 2000 film adaptation of American Psycho. It is directed by Morgan J. Freeman and stars Mila Kunis as Rachael Newman, a driven criminology student who is drawn to murder. The film also features William Shatner as her professor.

The film starts with a 12yearold girl whose babysitter is on a date with serial killer Patrick Bateman. After Bateman kills and starts to dissect her babysitter, the girl stabs him with an ice pick. Fast forward to the present day and the girl, who is named Rachael Newman, is now a college student studying criminology under Professor Starkman, a former FBI agent. Rachael aspires to join the FBI and is determined to get the teaching assistant position under Starkman, which would make her a shooin for the FBI training program.Tough competition for the position stands in her way, and Rachael proceeds to kill off classmates one by one. During her killing spree she decides to see the school psychiatrist, Dr. Eric Daniels. Realizing that Rachael is a textbook sociopath, Daniels tries to warn Starkman, who mistakenly thinks the psycho student is Cassandra Blaire, with whom he had an extramarital affair. When Cassandra reveals that her affair with Professor Starkman has guaranteed her the TA position, Rachael decides to murder her as well. After she does so Professor Starkman discovers Cassandras body and calls Daniels to tell him that shes dead. But he does not identify the victim, and Daniels assumes it must be Rachael. Distraught, Professor Starkman leaves his teaching position, which angers the obsessed Rachael. She reveals that she is not Rachael Newman she killed the real Rachael at the beginning of the semester and assumed her identity. ........

Source: Wikipedia