The Phantom Gondola (1936)

A femme fatale falls in love with a Venetian count, implacable enemy of Selim, who pursues his sister with his diligence. This one makes stop and condemn to death the count who made an attempt on his life. Then he offers the woman her father's salvation in exchange for her favors. A snake kills him, the count is shot and the woman finally takes the veil.