Mica and Maru have left their criminal past --and their friendship-- behind and are living respectable lives on opposite sides of society, until the arrival of a mysterious envelope brings them closer together.

In exchange for her silence, Paola demands that Maru and Mica drug Romero and hand him over. Meanwhile, the women at the NGO suspect that there’s something off in Maru's past, and Pablo believes his wife is lying.

After several embarrassing failures, Maru and Mica decide to train two younger girls to seduce Romero. Meanwhile, Mica infiltrates the gated community again to steal tranquilizers from Maru's neighbors.

After securing an extension to hand over Romero, Maru and Mica dedicate themselves fully to training the new black widows. Meanwhile, the girls at the foundation grow increasingly suspicious of Maru's true intentions.

Maru and Mica infiltrate the home of Gussi's widow to find out more about the businessman. Later, Maru reunites with her mother at her home, while Anto and Rocío learn something about Romero that forces them to change their strategy.

Maru deals with suspicions from Maggie and her own mother. Later, Mica finally goes out partying with Antonella. Paola and Raquel try to reconnect. At the beauty salon, everyone devises a new plan to get Romero to sleep.

The girls finally manage to put Romero to sleep, but they’re not out of the woods yet and decide to follow Nelly’s lead. Later, Rocío meets up with the chef—but it ends poorly—while Maru and Mica find themselves in mortal danger.

Worried about Maru, Pablo dares to leave the house and meets up with Cristian and the girls at the beauty center to look for his wife. Convinced they're going to die, Maru and Mica finally uncover the truth behind Paola's blackmail.