Madrid, Spain, 1975; shortly after the end of the Franco dictatorship. Six months after the mysterious death of his lover, a prestigious tailor, a married woman visits the office of the young Germán Areta, a former police officer turned private detective, to request his professional services.

A young man, son and grandson of soldiers, refuses to perform military service, causing a commotion in the whole family. Finally, social, environmental and family pressures, will force the young to make a decision that will have unforeseeable consequences.

A luxury hotel in the capital of Madrid is the target of an international terrorist group to carry out an attack that will serve as a loudspeaker in front of the Western world. Employees and clients of the hotel, policemen, politicians and artists, will be involved in a series of dramatic events that will jeopardize the stability of the country. The police commissioner Javier Gallardo will have to take charge of the difficult mission of dismantling the terrorist cell before the imminent attack takes place, although he will be forced to question the orders of the recently appointed Minister of the Interior, thus uncovering secret relationships in the shadows.