Unforgettable (1996 film)  Unforgettable is a 1996 science fiction erotic thriller film directed by John Dahl and starring Ray Liotta and Linda Fiorentino. The film is about a man named David Krane (Liotta), who is obsessed with finding out who murdered his wife. John Dahl's follow up to his critically acclaimed 1994 film, "The Last Seduction", "Unforgettable" was a critical and box office failure, only earning less than $3 million in the United States. Seattle Medical Examiner Dr. David Krane (Ray Liotta) arrives at a crime scene, an apparent drug store robbery. He finds a matchbook that reminds him of a similar matchbook found at the scene of his wife Mary's murder. He convinced that the killer is the same man who killed his wife. He approaches Detective Don Bresler (Peter Coyote), insisting that, should he find a suspect, to interrogate them about his wife's murder. Later, Krane goes to a dinner where Dr. Martha Briggs (Linda Fiorentino) gives a lecture on her experiment to transfer memories. She tells Krane that neuro-peptides are used in forming memories and can be retrieved from Cerebral Spinal Fluid (CSF). She has created a serum designed to facilitate the memory transfer process but an external stimulus similar to the memory must also be present for the memories to successfully imprint on the recipient. When Dr. Krane learns human trials are many years away, he says he would volunteer to try the serum, but Dr. Briggs refuses. Later that evening Krane retrieves the sample of CSF from his wife's autopsy, and then breaks into Dr. Briggs' office. He then goes back to his house which is filled with crime scene photos. Krane injects himself with the serum, and has a memory flash of the night of his wife's murder, but is unable to see the killer's face. Krane then returns to the lab, retrieves the CSF from the female victim at the drug store. Krane drives to the drug store where he then injects himself, again, with the serum. Krane is finally able to see the killer's face. He then meets with a police sketch artist and tries to create a sketch of the killer. Krane and his friend and colleague, Curtis Avery (David Paymer), enter the sketch into a computer program that generates a searchable photo of the killer. Briggs then confronts Krane about the break in and the theft of her serum.