When Inspector Gurn discovers a large knife lodged within the chest of dead Billionaire Marcus Kane, he suspects foul play.  But who is behind the gruesome murder?  The cheating wife, the cheating husband, the jealous boyfriend, the maid with a secret, the other wife who ends up cheating on her husband, the unattractive septuagenarian who wants to sleep with a much younger woman who is being cheated on by her husband, or the mute priest - All, including Gurn himself (and excluding the dead billionaire), are suspects in the murder mystery farce, Heart Attack With A Knife.