Emma wants to learn how to communicate with the spirit of a girl who has been trapped in a hermitage for centuries, and to that end, she tries to persuade Carol, a sceptical medium, to help her.

Maria, a new mother and writer, is transfixed by the disturbing case of a woman who drowned her infant twins, prompting her own journey through the complexities of motherhood.

In the mid-to-late 1970s, two young women from different social backgrounds meet inside the Patronato de Protección a la Mujer (Women’s Protection Board), a state-backed institution that confined thousands of women, many single mothers, in convents and boarding schools under the guise of moral 'reform'. Ana, a rebellious 19-year-old from Barcelona, is sent by her wealthy father to a Patronato facility overseen by the merciless Sister Socorro. Amid the harsh conditions, Ana forms a deep bond with Sole, a friendship tested by escape attempts, reprisals, and an ultimate sacrifice.

A wounded woman is capable of much; a swarm of well organized and motivated women can do much more.