Multiple love stories unfold in Barcelona during Christmas's Eve.

As a volcano threatens northern Tenerife, the spark between a headstrong scientist and a disciplined pilot tests their ability to resolve the crisis.

Tomás, accompanied by his biographer Lina, calls upon his two sons, Jesús and Antonio. The sons find themselves competing for a potential inheritance. The discovery of a large flag standing in the garden triggers a wave of family conflict.

Follows the founder of a company who offers alibis to customers who are dishonest or disloyal.

Raúl and Lucas have been friends forever. One day, Raúl takes Lucas home... but first he asks him for a favor. An important one. After all, Lucas owes him one.

The Fuentes are not the best family in the world. But what family is it? Work, school and routine have plunged them into a spiral of disconnection that seems impossible to stop. However, everything changes when the youngest of the group, Valentina, makes a wish for her ninth birthday. The next day, all the members of the family wake up with their bodies swapped: The father is in his wife's body, the girl is trapped in the grandmother's body, the teenage twins are not themselves... Chaos takes over. the family and, desperate, they ask themselves: Who is who? While the family faces crazy situations and hilarious circumstances, the Fuentes must learn to get under each other's skin and trust each other to turn the situation around. Will they be able to return to their original bodies and get their lives back?