Wives and other wives (1918)

Assuming the worst Geoffrey Challoner impulsively storms out of the house when he sees his new wife Robin reading old love letters. In his absence, Norman Craig, planning with his wife to lease an upstairs apartment owned by Judge Corcoran, wanders into the Challoners' apartment. Robin, mistaking him for a burglar, shoots him and then runs for a doctor. Returning, Geoffrey again rashly makes assumptions 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. Following a bewildering series of misadventures, including an attempted robbery by the maid and the chauffeur, Geoffrey learns that the love letters were his own, and the young couple are reconciled.