Richard Narita

Lionel Twain invites the world's five greatest detectives to a 'dinner and murder'. Included are a blind butler, a deaf-mute maid, screams, spinning rooms, secret passages, false identities and more plot turns and twists than are decently allowed.

After a break-in at their house, a couple gets help from one of the cops who answered their call. He helps them install a security system, begins dropping by on short notice and unofficial patrol angling to pry into the couple's problems with the wife. The husband begins wondering if they're getting too much help.