Spain, 19th century. In a small coastal village, Olalla and her family prepare to live a very special night, during which it is mandatory to comply with a single rule: no light must remain on.

Luis Miguel, a 30-35 year old man, unemployed, lonely and with a boring life. He realizes that his Wednesdays are disappearing, or worse, someone is stealing them, and oddly enough there is an association behind all this trafficking in his days. After discovering it, Luis Miguel turns his sad life upside down and begins to fight against the association.

Marta has found a dress that is not hers in her boyfriend Fer's room, all the trust she has placed in him over years of relationship is shaken.