After leaving their criminal past behind, Maru and Mica have not spoken to each other for years, until the arrival of a mysterious envelope brings them closer.

In exchange for their silence, Paola demands that Maru and Mica put Romero, a young businessman, to sleep and hand him over to her. Meanwhile, the foundation's women suspect something strange in Maru's past, and Pablo believes his wife is lying.

After several failures, Maru and Mica decide to train two younger girls to seduce Romero.

Maru and Mica train the new Black Widows while the women at the Foundation grow increasingly suspicious of Maru's intentions.