Beware of Bachelors (1928)

In order to receive a large monetary windfall from a relative, Ed and May have to stay married for a year. If they don't, the money will be given to a cousin, Claude de Brie, who aims to separate the couple before the year passes. Cad that he is, he uses femme-fatale, vamp-for-hire Miss Pfeffe as part of his unsavory plan.