The Crystal Cuckoo

Clara Merlo, a young doctor who received a heart transplant, travels to a remote mountain village to learn who her donor was. The town is wrapped in decades of unexplained deaths and simmering suspicion, and Clara's questions reopen wounds and old tensions. As she pieces together fragments of a life that saved hers, she runs into guarded locals, conflicting testimonies, and signs that the past isn't finished with the present. The series follows her attempts to map a donor's history while the community wrestles with grief, secrecy and the fallout of long-held rumors, keeping its revelations close to the chest until relationships shift under pressure.

Created by Javier Castillo, Jesús Mesas Silva and Javier Andrés Roig, The Crystal Cuckoo premiered in 2025. The show stars Catalina Sopelana as Clara Merlo, with Itziar Ituño, Álex García, Ivan Massagué and Tomás del Estal in key roles, and mixes crime, mystery and domestic drama across its episodes.

As of its initial release, no major international industry awards have been recorded for the series. Its awards profile is still developing, and any local festival mentions or nominations have been limited while the show finds a wider audience.

The series has prompted conversation about organ donation, privacy and how small communities handle loss, especially within Spanish-speaking viewer circles. Certain scenes and the mountain setting have become talking points online, and viewers have been sharing theories about the town's pattern of tragedies and the connections between characters.

Reception is mixed, with a 6.544/10 vote average based on 57 votes, indicating varied responses. Many viewers praise the performances and the tense, insular atmosphere, while others mention pacing and a preference for clearer answers. Major themes include grief and identity, the ethics tied to transplantation and medicine, and how collective memory and silence shape a community's sense of truth.