While travelling by ferry to the island of El Hierro, Maria loses her young son Diego. Has he fallen overboard? Has he been abducted? Nobody knows. Diego simply vanishes.

Six months later Maria is fighting to overcome the pain of her loss, to pick up the pieces and continue with her life, when she receives an unexpected call. A child's body has been discovered; she must return to El Hierro. On the island, in this strange and threatening landscape, surrounded by sinister, malevolent characters, Maria is forced to confront her worst nightmares. As she travels the terrible path that may lead to her son, Maria will make the most unbearable discovery of all – that some mysteries should be never be revealed.

Spanish thrillers have done rather well in recent years, including Juan Antonio Bayona's The Orphanage,Jorge Sánchez-Cabezudo too little seen Night of the Sunflowers (La noche de los girasoles), and of course Guillermo del Toro's Pan's Labyrinth. Whether director Gabe Ibáñez's Hierro lives up to the acclaim of its predecessors is something we'll be able to judge when it's released on UK DVD and Blu-ray on 26th July by Optimum Home Entertainment at the RRP of £17.99 for the DVD, £19.99 for the Blu-ray. The only listed extra is a trailer, but the Blu-ray will have DTS Master-HD 5.1 surround sound.