A Black cop is pushed over the edge when he is passed over for a promotion, leading him on a violent personal crusade against criminals punctuated by feverish psychedelic dream visions.

Captain's daughter Josephine and common sailor Ralph Rackstraw are in love. However, their relationship is complicated by her arranged marriage to the high-ranking Sir Joseph Porter. A secret about the characters' true identities revealed by Little Buttercup, which leads to a farcical resolution.