Intro. Evelin and Luiza, united since childhood by the tragic loss of parents, have always found the strength in the Brotherhood to overcome obstacles. Under the aunt's guard, they grew side by side, but time revealed a shadow in Evelin's soul: envy. Luiza, awarded the attention of a charming and successful man, aroused in Evelin a bitter feeling.
In the whirlwind of preparations for Luiza's wedding with Marcos, an unthinkable act happens. In the farewell of single, Evelin, consumed by envy, seduces Mark, betraying his sister's confidence.
Wedding Day dawns, loaded with expectations. Luiza, radiant, walks towards the altar, supported by her aunt. But in the crucial moment, a video explodes on the screen, revealing the sin of Evelin and Marcos. Luiza's world collapses, and the pain of betrayal consumes her. In tears, she runs away, banishing her sister and the unfaithful fiance from her heart.
Evelin, tormented by guilt, realizes the monstrosity of his act will do everything to have the forgiveness of his sister