It's two years since the mysterious disappearance of Kath Swarbrick's older sister Annie. But Kath remains haunted by the need to know what happened. When police investigations wind down, Kath continues the search herself. She gets nowhere until she steals some CCTV footage of her sister on her final day. Visiting the spot where she was filmed, Kath becomes convinced she has found a gateway to another reality in which Annie is still alive. Those close to Kath are skeptical. They question her sanity, beg her to stop searching. Has Kath really found a way to access the afterlife? Or is she losing her grip on reality?
