Passers By (1916)

Young Englishman Peter Waverton loves his fiancee Beatrice Dainton, but can't get Margaret Summers, with whom he had an affair eight years before, out of his mind. Peter's sister Lady Hurley broke up the Peter/Margaret affair by convincing Margaret, her maid, that Peter, who had traveled to the Continent on business, had actually abandoned her. However, Peter is shocked when Margaret accidentally runs into him in London shortly before his wedding is to take place. He's even more shocked when he sees who is accompanying her.