Crimewave
A pair of whacked-out cartoon-like exterminator/hitmen kill the owner of a burglar-alarm company, and stalk the partner who hired them, his wife, and a nerd framed for the murder, who tells the story in flashback from the electric chair.
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About
Crimewave (1985) is a comedy, crime, horror movie running 1h 23m. Starring Reed Birney, Louise Lasser, Sheree J. Wilson. Rated 5.5/10 on TMDB. Watch it online free on ZapFlix.