Two detectives interrogate a hairdresser on two homicides she may or may not have been involved in.
 
This film is frustrating because if this was really how police detectives ran their investigations, then there would be a lot more criminals on the streets.  You should only watch this movie for Bruce Willis because he steals every scene and his character is a total bastard.
 
FUN FACT:  The only ever live-action theatrical feature film where cast members Demi Moore and Bruce Willis both star in lead roles. The pair featured in smaller roles in 'Charlie's Angels: Full Throttle' (2003) whilst both also did voice-work on 'Beavis and Butt-Head Do America' (1996).