It Takes All Kinds (1969)

After possibly killing a man in a brawl at a farewell party Tony Gunther, an American merchant seaman, is knocked out and wakes up in the apartment of Laura Ring, the secretary of a shipping company. Ms Ring tells him he is a suspect in the "Swede's" murder and persuades him to join her in the theft of a silver chalice from the Museum of Medieval Studies. But when Gunther removes a stained glass window to gain access to the museum, he cannot find the treasure, discovering Ms Ring has disappeared with the window. The Swede is actually still alive. After following Ms Ring to Melbourne, Gunther catches up with her. He discovers that she is involved with a millionaire criminal, Orville Benton, who has stored a collection of stolen art treasures in the false bottom of a wheat silo. Gunther enlists the help of an attractive insurance investigator J. P. Duncan, and a friendly tattoist and fence Benjie. Ms Ring dies as she tries to take possession of Benton's collection, smothered by a shower of wheat in the granary. After a shoot out, Gunther rescues the precious window and Benjie drives Benton off a wharf and into the harbour. The stolen property is returned, leaving Gunther and Duncan to marry; but they are forced to flee as Gunther's shipmates, led by the Swede, become involved in another brawl over who gets to keep Charlie the Cat.