The gorgeous Margot supports her aged father by seducing men on trains, slipping them a Mickey Finn (a beso de sueño) and robbing them. One night her victim is a currency smuggler taking 100 million pesetas out of Spain. He's being watched by a cop and by a burned-out alcoholic.

Tania, an asylum patient, is under the doctor's care while suffering raging behavioral effects that follow the death of her exorcised mother.