Wicked Games (1994)

Detective Gary discovers that his wife is having an affair Despondent he drinks and discusses his problem with friend Dan a police detective When someone in a copper mask begins slaughtering people connected to Garys life Dan begins suspecting Gary whose cousin Mike had a similar slip of the gears Dan discusses the case with eminent psychiatrist Dr Siedow who has a few sexually slipped gears of his own Together they try to stop the fiend before more people are killed