A poor wop entrusts his savings to an antique dealer's care. Bad idea. When he comes back to claim his dough,the villain acts as if they've never met. And the poor Italian immigrant kills him.

Petrus, a Montmartre photographer, is accidentally wounded by Migo, a dancer at the Frou Frou night club, when she is trying to shoot her faithless lover Rodrigue, a counterfeiter. Though Petrus tries to reconcile the lovers, Migo lands up with him after Rodrigue is finally killed by another jealous dancer.