Federica Marín, a three-month pregnant woman whose life will completely change when she discovers that the baby in her womb does not have her DNA, so it is not hers. After this, the woman decides to go to the clinic to find out what has happened to her embryo, where she will discover that her true embryo has been exchanged with that of another couple. But when he finds out that the other woman has had an abortion, the biological parents of Federica's son will do everything they can to get her real son back, which will put Federica in a very difficult position.