Marcus Toledo

Helena is a sweet, honest, sensitive and a warrior woman who faces the premature pregnancy of her daughter Joyce, who in turn is abandoned by her boyfriend, the irresponsible Caio. The biggest problem is the girl's father, Assunção, Helena's ex-husband, who does not accept the situation. Lonely and alone, Helena awakens a passion for the endocrinologist Carlos Alberto, and has her feelings matched. But Carlos is committed to the possessive Paula. The girl's parents, Zuleika and Rômulo, anxiously await their daughter's wedding with Carlos, who will save the family from financial decay. But Carlos is the type of man that women don't really forget. Even married to Paula and in love with Helena, he is still harassed by ex-wife Sheyla, who is not satisfied with having lost him and dreams of a rapprochement.

Helena and Álvaro fall in love, but she marries someone else. Years later, they meet again and Helena becomes pregnant, but keeps it a secret because Álvaro is now the one who is engaged.

Carlinhos and his friends are guided by a group of ghost scientists and dive into the search for a secret stored in a mysterious pyramid built below the area that houses the Butantan Institute.