Um Pequeno Desvio

When Pedro and his partner Marta's wife finally decide to give in to temptation and spend a few hours of passion in a hotel room, Pedro realizes immediately afterwards that that affair was a mistake and that it will not be repeated. But when she decides to say this, Marta discovers that on her way home, she had an accident and seems to have woken up with amnesia in the hospital. Convinced that everything is resolved this way, Pedro is surprised when Marta, on the one hand, reveals to him that the amnesia was just an excuse so that her husband would not suspect Marta's presence near the motel where she had the accident, and on the other, tells him who is determined to continue the affair with him. Pedro tries at all costs to avoid Marta but she begins to harass him in an almost psychotic way. Can Pedro restore normalcy to his life after his small deviation, or is it too late to prevent a tragedy?