Mariana lives with her father, Atílio, and is motherless. He is a very powerful man, and he keeps a big secret: Mariana is not his biological daughter, Atílio has two sisters: Isabel, the oldest, a good and caring woman, who raised Mariana and loves her as if she were her own daughter; Márcia, the youngest, arrogant and very vain, has a cold heart, has never fallen in love with anyone and always mistreated Mariana, until a boy called Inácio Lugo Navarro arrives in the city, very attractive, who uses a false name and is looking for his roots and revenge.