It had to be the most beautiful year for Francisco Garralda, a psychology student. It has less and finish college. But Professor Espinosa gave him not, neither for beautiful Nuria Abreu passing grades. Francisco decides to take action, go talk to the teacher to convince him to give her a pass. Espinosa agrees but with one condition: Francisco will help him die, managing to escape the feeling that grinds cuplabilitate for so long. Nuria is convinced that something is wrong and he is right: shortly begin a deadly game of cat and mouse.