One day, Cuphead and his brother Mugman were strolling along and playing as usual. Once Cuphead sees a nearby Devil's Casino, his immediate instincts are to run inside and play games. Despite the warnings of their guardian, Elder Kettle, Cuphead and Mugman enter the casino, which was a grave mistake. Once Cuphead makes a deal with the Casino's over, The Devil himself, he and Mugman are forced to get some soul contracts for the Devil, or else their lives are on the line.