After returning from a trip, a young dentist discovers that her home has been ransacked. Determined to recover part of her belongings, the protagonist initiates a criminal process within a corrupt and ineffective justice system that turns her life into a nightmare.
In Guanajuato, a piano teacher delays her marriage to an engineer not to let her younger sisters alone. As he is love with her voice, he is mistaken for a sister whom he marries. The teacher then goes to the capital. There she becomes part of a family of young students, who believe she is the mistress of his father, so she suffers the scorn and reproach. Over the years the parents die and she renounces to the inheritance they leave her.
Returning veteran with PTSD/amnesia returns home and gets tangled up in a criminal investigation.
After indulging in an affair with a man (a friend of the family) she truly loves, a woman returns to her young son and husband for good, and loses contact with the man. Her husband is unaware of the affair. Twenty years later, there is news that the friend has died and left all of his money to the younger son in the family, which leads us to question this younger son's biological origin.
In Mexico City, two sisters, Maria and Elena, fight over the love of pimp Rodolfo. Elena escapes her sad marriage to an old banker into Rodolfo's arms. Meanwhile, life is hard for sex worker Maria, who-along with her supportive group of fellow sex workers-must deal with exploitative clients.