The Shock Labyrinth

A group of teenagers once left a friend behind in the haunted house of an amusement park. Yuki vanished there, and the friends did not stay to find out what happened to her. Ten years later, on a rainy day, she reappears among them as suddenly as she disappeared. When she collapses, the group takes her to a nearby hospital, where the corridors and rooms seem to shift like a maze. As the night goes on, they are drawn back into the events that surrounded her disappearance and have to confront what they did.

The Shock Labyrinth is a 2009 Japanese horror thriller directed by Takashi Shimizu, the ninth of the twenty films he has directed to date, following The Grudge 2 and preceding Kiki's Delivery Service. The screenplay is by Daisuke Hosaka, with Satoru Ogura, Masayuki Tanishima and Dai Miyazaki producing. Yuya Yagira plays Ken, Misako Renbutsu plays Yuki, and the cast also includes Ryo Katsuji, Erina Mizuno, Ai Maeda and Suzuki Matsuo.

The film was released in October 2009 and runs 89 minutes. It grossed around 3 million dollars worldwide. Viewer scores are low: on IMDb it holds a rating of 3.9 out of 10 from about 1,200 votes, and on TMDB it has a rating of 4.3 out of 10 from roughly 35 votes.