El Pistolero (2012)

In June 1994, Nicholas Barclay, a Texan boy of 13, disappeared without a trace. Three years later, surprising news about the case received: the boy has been found in Spain and claims to have been tortured by his abductors. After the initial joy of the family to recover, an inexplicable problem: how is it possible that the blond son of Barclay is now dark?