In this movie, a woman investigates a series of suicides in a particular apartment.

It was shot in the Japanese Hamamatsu City in the region Shizuoka Prefecture.

The film premiered on 08 February 2007 as part of the European Film Market in Germany.

There will be a remake of it, which is directed and written by the Swedish filmmaker Daniel Fridell. Daniel Fridell is the co-producer of this film.