Set ten years after the finale's quintuple wedding, the special portrays the happily reunited San Román family, including four new grandchildren, as well as the Xochimilco residents. The San Románs go to Patricia's lake cabin in order to celebrate their shared ten-year wedding anniversary, unaware that Demetrio, whom they believe died after escaping from prison a year prior, is actually alive and well and is conspiring with his grandson, Ángel and Alma's young son Angelito, and the San Román grandchildren's nanny, Diana, to kill the entire family.

Lalo, a humble mechanic with a great singing voice is discovered by the most famous pop group and launched to stardom, but he will be dazzled by fame and money, even forgetting his loved ones.

On Halloween night, a group of bored teens decide to steal a corpse from the local morgue and take it to a nearby cemetery where they perform a Satanic ritual, unwittingly reviving a bloodthirsty serial killer.

Halloween television special loosely based on the Mexican version of "The Rocky Horror Show".