Dog Eat Dog (released as Einer frisst den anderen in Germany) is a 1964 German crime drama film starring Jayne Mansfield, Cameron Mitchell, Dodie Heath, Ivor Salter, Isa Miranda, Elisabeth Flickenschildt, Werner Peters, and Pinkas Braun.

Three robbers, Lylle Corbett, Dolph Kostis, and Darlene, steal one million dollars from a shipment on its way to the United States.

Before Dolph's return, Darelene was visited by hotel manager Livio Morelli, requesting her to turn down the volume on her radio.

They are unaware that the hotel manager's innocent looking sister, Sandra, is in the back of the boat and has planted a bomb to kill the pair.

However, the island is not entirely deserted; Lady Xenia has retired here to spend her final days in peace, accompanied by her butler Jannis.