The sudden death of Maisy's best friend and her husband left their son, Kostya, all alone. Promising herself that she will take care of him, Maisy is surprised by a Russian intruder named Alexei. He is in fact the guardian of Kostya. Suspicious of this handsome and arrogant man, Maisy goes to his mansion in Naples as a nanny. Even after several fights, their natural attraction eventually leads them to share the same bed. But when the compensation Maisy receives is far more than she expected as a nanny, she has to ask herself what Alexei is paying her for. Is she just a mistress to him?