Ángelo, a boxing trainer, prepares Irene – La Perla Torres – to fight for a world title. La Perla tattoos a word on her heart, convinced that this will give her special power in combat. Things get complicated when everyone discovers that her rival, Katia-Machine Gun-Martínez, has also tattooed her heart.
Lucia travels with her boyfriend, Alex, to the house of her enigmatic sister Lula, a place trapped in time and memories. During their stay in the last days of a summer, ghosts and family secrets return to their lives.