Mercedes Maidana, a 40-year-old housewife, was part of a group of scammers twenty years prior and nobody in her current life knows about this. In the past, her name was Lisa and she worked with Álex López, who recruited her for this type of tasks and became her first love, and Ciro Nieto, with whom he planned and financed the scams. A robbery failed and the group disbanded. Mercedes, with a changed identity, began a new life away from scams. She married Rafael Crespo and they had three children, who know absolutely nothing about their past, while living a normal life. One morning, they discover that a new family, the Mayorga, moves to the most luxurious and sought-after house in the neighborhood. Mercedes is shocked to learn that the family man is Álex, whom she believed dead. Ciro leaves prison after twenty years and begins serving house arrest. He seeks revenge from his former partners for the crime he blames for having been imprisoned from his residence. The return of Álex to the life of Mercedes aims to conquer her again and to achieve his purpose he is in charge of hiring a group of actors to pretend to be a normal family and thus, be able to be close to Mercedes without attracting attention.
