Multi millinaire Ezra Ounce wants to start a campain against 'filthy' forms of entertainment, like Broadway-Shows. He comes to his relatives families and makes them members od his morale-boosting campain. But Jimmy, another relative is producing a show, starring Ezra's nice Barbara. But he had bad luck with his backer, this person has give him an invalid check. Another of his victims, the show-girl Mabel has the idea of blackmailing Horace, Barbaras father, whom she has met before in a slightly compromising situation to get the money.

Comedy-mystery finds Detectives Kelly and Dempsey trapped in a deserted lighthouse with a group of strangers who are being terrorized by a killer octopus AND a mysterious crime figure named after the title sea creature.