Mrs. Temple's Telegram (1920)

Jack Temple adores his wife, but she remains extremely jealous of him. At an ice-cream parlor, Jack is attracted to a flirtatious vamp and meets her again later on a department store's roof garden. They linger so long that the store closes and the couple are locked out for the night. The next day, realizing that his wife will not believe the truth, Jack tells her that he spent the night with his friend, John Brown. Mrs. Templeton, suspecting that this is a lie, wires John Brown to come. Jack then convinces his friend Frank Fuller to pose as Brown, but the real Brown, who is Mrs. Temple's Italian hairdresser and is secretly in love with her, arrives on the scene. Brown's wife follows in a jealous panic. Then the vamp appears and confesses that she is actually Mrs. Temple's cousin, who hatched the whole scheme to cure her cousin's jealousy.