On leaving work, while Darío Manzano is taking drugs in the car, he receives an unexpected visit from Ginés Chega. At the same time that he points a gun at Darío´s face, he asks about his friend Abraham "El Gitano", whom he accuses of having stolen a lot of money.Manzano, without knowing what happened, cannot answer anything about it, and Ginés angrily gives Darío a head butt on the nose while threatening him and leaves.Darío with a broken nose, starts looking for his friend. When he finally finds him, very angry, he reproaches Abraham for stealing from Los Chega, very dangerous people. Trying to find a solution, Darío decides to take Abraham to France so that they will not find him.That night, during the car journey, Darío suffers a stroke that will cause him to lose control, leaving the road and causing the death of Abraham.After a few months, the advances in Darío’s rehabilitation begin to show results. But everything begins to go wrong due to the accumulation of different events that will put Darío and his family in trouble: defaults with the bank, tensions between them and the imminent sentence of the trial for the accident. To this is added, the pressure from Los Chega to Darío to recover his lost money, since the night of the robbery, Abraham was in the car with Manzano when he suffered the accident.As a consequence of this, Manzano will live a few hours prior to his entry into prison frantic and full of danger, where he will try to defend, TO THE TEETH OF A DOG, his family.