The Dancing Cheat.

Crooked gambler Eddie Kane induces his estranged wife, Poppy, to help him blackmail Brownlow Clay, the owner of a clean-cut gambling establishment in Tijuana. The plan involves Kane "discovering" Poppy in Clay's private apartment to demand hush money. During the setup, Poppy finds herself genuinely falling for Clay. Overcome with remorse and ashamed of her part in the "badger game," Poppy chooses to protect Clay and double-crosses her husband instead. With Kane's plot defeated, Poppy and Clay are free to marry and start a happy future together.