Forty year old Mariano seems to have it all: a successful economist, married to the beautiful Cecilia. But all is not as it seems. Mariano is having a financial crisis that not even his family is aware of. When his old friend Manu comes back into his life, it seems his prayers are answered. Manu asks him to take part in a promising business deal. It is risky but the rewards are high. Mariano examines the deal and convinces himself it will work. Together with Manu, they put the opportunity to their old friends who all want a piece of it. But can Manu be trusted? Pretty soon the dream of easy riches turns into a nightmare. Unfinished business from the past takes centre stage. Emotions run high. Jealousy, greed and betrayal drag the situation out of hand. With a fast paced story and rich themes Perfidia asks the million dollar question: who can you trust, if not an old friend?