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The protagonist of the dramatic detective story, psychiatrist Viktor Larents, has a twelve-year-old daughter who has disappeared under mysterious circumstances. Four years later, having lost all hope of returning her, he retires to a small island. But his peace is disturbed by a schizophrenic stranger who sees strange visions: a girl who looks like Victor's daughter appears to her. Larentz wants to find out what happened to his little Josefina, so he begins a course of therapy that gradually turns into a dramatic investigation...