A young woman disappears under strange circumstances. It is Lúa, a member of the family that owns an important pharmaceutical company. Maite is in charge of the case, and Tomás cannot avoid getting involved, despite the fact that he is living an extreme personal situation.

Tomás finds out that a great friend has been arrested as a suspect in murder. Maite, for her part, is dedicated to saving Lúa from her kidnapper.