Hithcock meets Hideo Nakata in this atmospheric Spanish psychological thriller about a youngish single mother whose son vanishes on a ferry. Much of this atmosphere can be put down to the naturally-occurring uncanniness of the landscape of El Hierro and the tendency of Spanish women of a certain age to speak in eerie whispers.
The aha moment has a degree of predictability about it and Gabe Ibáñez lays it on very thick with the watery symbolism. And what's with the birds? Surely they're emblematic of more than an obvious debt to the master of suspense?