Frozen

Kath Swarbrick (Shirley Henderson) is haunted by the mysterious disappearance of her older sister Annie. Two years have passed, and as police investigations wind down, Kath becomes ever more obsessed in trying to find out the truth. She steals some CCTV footage of her sister on the day of her disappearance, and decides to visit the spot in a dockland alley where Annie had been recorded. Staring transfixed at the camera above her, Kath has visions of a boatman, an inlet, and a young woman walking on the other side of the bank. Kath becomes convinced that she has found a gateway to another dimension where Annie is still alive. Kath also senses that a glitch on the video footage is actually a clue about Annie's mysterious disappearance. Steven (Richard Armitage), Fleetwood docks security manager, dismisses Kath's claims as mere wishful thinking. Some around Kath question her sanity, while a kindly parish priest, Noyen Roy (Roshan Seth), tries to help the distraught woman maintain her fragile grip on reality. During the process, Noyen develops more than fatherly feelings for Kath. Ultimately, reality turns out to be considerably more complex and more frightening than either Kath or Noyen expected.