Someone Must Pay (1919)

"TO PROVE A STRIKING FACT IS THE OBJECT OF THIS PLAY-THAT FOR EVERY INDESCRETION "SOMEONE MUST PAY.""

Broker Henry Taylor is furious at the attention his wife Regina receives from Charles Bryant, an elderly bachelor. When he comes home one night and finds Regina in Bryant's arms, he orders him to leave. Bryant obliges, but he doesn't go away -- when the Taylors' daughter, Vivian, has a birthday, Bryant gives her a Shetland pony.