Por un beso (For One Kiss)[1] is a Mexican telenovela produced by Angelli Nesma Medina for Televisa in 2000.

Her boyfriend, Mariano Díaz de León, is a famous architect, she loves him, but doesn't know that he has been lying to her all the time and he is married and has 2 sons.

Julio, the childhood friend of Mariano's wife came to visit her after he inherited a lot of money from his father.

Though it was an accident, but Julio was sent to prison for many years, as Mariano declares against him and also finds him the worst attorney he possibly can.

After Blanca gives birth to a baby girl; Azucena, Mariano visits her in the hospital, and she realizes that it was all his fault.