A gang of hoods led by "Shark" tries to extort protection money from bar owner Susanne. She soon forms her own gang and claims the tough Charly will protect he. Charly, actually a meek Scotsman, deals with the hoods in spite of himself.

A family discovers their youngest daughter has cancer. But the real struggle has yet to start.

At the cabaret "The Green Spider", a stranger shoot the singer. Since the murder happens during a trumpet solo nobody hears the shot.

"Underwater Spearfishing" was produced with assistance by Captain Hal Messinger, a diver of some renown. It shows free divers training, and the successful hunt for a manta ray. The film was released by the Sea-Net Company of Los Angeles, an early manufacturer of free diving and spearfishing equipment, including spear guns, rubber masks, and fins.