In this heist film turned horror fest, director Álex de la Iglesia's love of mayhem is on full display as a gang of gold thieves lands in a coven of witches who are preparing for an ancient ritual -- and in need of a sacrifice.

Spain, 1950s. Montse's agoraphobia keeps her locked in a sinister apartment in Madrid and her only link to reality is the little sister she lost her youth raising. But one day, a reckless young neighbor, Carlos, falls down the stairwell and drags himself to their door. Someone has entered the shrew's nest... perhaps he'll never leave.

During the never-ending TV taping for a New Year's Eve program, peoples personal lives clash and eventually explode out into the open.