Sadie unknowingly becomes best friends with Gianna, the sister of her Mafia Don boyfriend, Callan. Because Gianna resents Callan's mysterious girlfriend, Sadie hides her true identity. After a pipe burst forces Sadie to move in with Gianna and Callan, the couple engages in a thrilling, secret romance right under Gianna's nose. Their relationship is finally exposed following a bar incident, leading Gianna to forgive Sadie and accept their relationship.
