Stanislas Oscar Seminario, aka SOS, is a young explorer, just back from Africa, visiting old friends: the Pescara's. But the father keeps receiving anonymous letters. And soon a mysterious murder is committed. SOS begins to investigate...
Lyria, a faded beauty who runs a seedy waterfront bar, is madly in love with Bob, a crooked attorney. Bob can't bring himself to confess his love for Minnie, the pretty daughter of Simon, a safe cracker. In order to run away with her, Bob, one of the masterminds of a big-time robbery, betrays his friends. But Lyria, who has found out what is happening, makes Minnie fall into a ...
