Snapdragon is a 1993 film directed by Worth Keeter.
When two men are killed after meeting up with an unknown prostitute, Sergeant Peckham is sent from vice squad to homicide to investigate.
She has her boyfriend, police psychologist David Stratton, assist her in profiling the murderer.
Soon they both become involved with Felicity, an amnesiac who keeps having a recurring nightmare where she kills her lovers.
They both soon start to suspect that Felicity is connected to the murders they are investigating.