The killer is later on revealed if you watch closely. However I was also disappointed with the result because the film leads you up the garden path. I didn't like the silly music put in places, making out the film is a spoof when it was supposed to be serious. I didn't know what genre I was watching anymore. I like murder mysteries but not tricks, where the film writers want to confuse the audience and that doesn't make sense. The personality of the killer doesn't fit the way the cheating husband was murdered in cold blood. No sense of realism or actual humanity. The characters are just cheesy types the ditsy blonde, the unsmiling and unfriendly rich woman and the nice brunette who is the main protagonist. People can't make good films anymore.