Erasmo Pascual

Armando, a natural prodigy with lethal attributes, capable of killing both his wives at first glance on their wedding night, decides to visit a psychiatrist friend and falls in love with his wife, her twin sister, and everything in between.

Marisa Salinas gets her first job at one of the top publishing companies of her country. Don Ricardo Arencibia, her boss, is a man who does not appreciate innovation and new proposals from the staff, but enjoys bloody crime stories, and beautiful women. Don Ricardo invites Marisa out for dinner; they start behind friends and, soon, they start a sexual relationship. All goes well - safe for a little mystery that envelops Ricardo's ex-wife. Marisa decides to investigate... and she will uncover much more than she expected: Ricardo had been trying to make Marisa look like his former wife, and there is a plot involving large scale corruption.

As there are still a lot of problems in the relationships of the Spanish couples Saint Valentine returns to earth and especially to Madrid in order to fix these problems.

Four families intend to buy a flat. In one of them, Margarita wants to marry Ernesto, despite his reluctance. The purchase of the flat is a great inconvenience and he uses this to delay the wedding as much as possible.