Vitoria-Gasteiz, Basque Country, Spain, 2019. Two corpses appear in the crypt of the Old Cathedral. Police officer Unai López de Ayala, an expert in criminal profiling, must hunt down the ritual murderer who has been terrorizing the city for two decades.

Carmen is a very open-minded mother who seeks to strengthen her relationship with her 25-year-old son, Dani, who is gay, deaf, and whose love life is on hold. She's concerned that despite seeing him often, he doesn't share his personal life with her. She decides to take him out of his comfort zone by secretly setting him up on three dates through an app. After convincing him to go, Dani will experience three very peculiar situations that, with humor, reflect the lack of understanding he experiences every day in a hearing environment.