A chance encounter with dentist Dr. Swangron (John Qualen) reveals that Muller looks exactly like a psychoanalyst who works in the same building, Dr. Bartok, the only difference being a large scar on the left side of the doctor's face. Seizing the opportunity, he begins researching Bartok, even slipping into his office to examine his records. He is discovered by the doctor's secretary, Evelyn Hahn (Joan Bennett). She mistakes him for her employer and kisses him, but quickly realizes he is someone else. He persuades her to go out with him, though she has become embittered and claims to have given up any dreams of finding love.