Everything's wrong, but it's fine. You became the mistress.

Marília Marques always followed the rules: she built a solid career as a lawyer, far from scandal and with an impeccable reputation she was proud of.

Until she met Fábio Cruz, owner of an irresistible smile, a gaze that belied any defense... and a wedding ring he conveniently "forgot" to put on that first night.

What should have been just a slip-up turned into an addiction that's hard to overcome. Secret encounters, disappearing messages, photos that are only seen once, and a desire that knows no time, morality, or logic.