The film stars Raúl Mérida alongside Guillermo Estrella, Sara Sálamo, and Joaquim de Almeida.

[1] Upon finding a set of photographs featuring long-missing friend Iván, young surfer Guillermo teams up with younger brother Mario, Fine Arts student Daniela and pal "El Ruso" to crack the mystery, involving a sinister commercial cartel.

[3] The film is a Bowfinger International Pictures, Atresmedia Cine, and Zinea Sortzen production with the participation of Antena 3 TV, ETB, ONO, Canal+ and La Sexta and backing from the Basque Government and Ayuntamiento de Donostia.

[6] Distributed by Warner Bros.,[5] the film was released theatrically in Spain on 26 July 2013.

[7] Fausto Fernández of Fotogramas rated the film 3 out of 5 stars, deeming it to be a "a summer adventure of mystery, suspense and tension", "that puts all the infallible Hitchcockian arsenal at the service of a teen movie with a child sidekick".