Milton Haskins, a math genius known for his infallibility with numbers, quits his job with an insurance company when he discovers he made a mistake, and hooks up with a traveling carnival. His knowledge of mathematics makes him a natural as an assistant at the wheel of fortune. His fiancée begs him to return to his job but he refuses, so she joins the carnival and becomes a striptease artist. When Milton attempts to drag her off the stage, a brawling mêlée breaks out and the entire troupe is arrested by the local police. The carnival is sold but Milton reveals that the new owner has conspired to defraud the insurance company. The insurance company has to accept the carnival in lieu of the money owed, and they allow Milton and his fiancée, Vivian, to stay with and help run the carnival.
부유한 화가에게 버림받고 갓난 어린 아이를 병원에서 낳은 여자가 키울 능력이 없어 고급차 안에 아이를 두고 간다. 그런데 자동차 도둑이 그 차를 훔치고 아이를 쓰레기통 옆에 두고 간다. 우연히 그 길을 지나가던 떠돌이 찰리가 애기 울음 소리를 듣고 얼떨결에 아이를 안게 되는데...
