Wives and Other Wives (1918)

When Geoffrey Challoner sees his new wife Robin reading old love letters, he assumes that they have been sent by a rival lover and storms out of the house. In his absence, Norman Craig, who with his wife plans to lease an upstairs apartment owned by Judge Corcoran, wanders into the Challoners' apartment, and Robin, mistaking him for a burglar, shoots him and then runs for a doctor. Returning, Geoffrey sees a man draped across his wife's bed and immediately files for divorce. Mrs. Craig and Norman, who had merely fainted, are invited to Judge Corcoran's weekend home along with the Challoners, whom the judge hopes to reunite. Norman's drunken condition brings him once again into Robin's room, however, while Geoffrey is discovered in a compromising situation with Mrs. Craig. Following a bewildering series of misadventures, including an attempted robbery by the maid and the chauffeur, Geoffrey learns that the love letters actually were his own, and the young couple are reconciled.