Brad Davis (sprayed into his tight white canvas trousers!) is the eponymous sailor, enticed into a seamy life when their ship docks in Brest. This proves to be a port where homosexuality is the currency of the day. The losing roll of the dice could cost you more than a few shekels. This is all something that captain "Seblon" (Franco Nero) is aware of - and he knows that sex can be an effective wayver mais...