Thriller movie from Japan. A case where people are abducted in order to pass some tests, but if they do not succeed, they are killed. All this show is being shown on the internet, except that none of the viewers notified the authorities to find them. The idea has been used many times in the past and is not new, but it always remains interesting. It also had some plot twists before the end where some tried to trick others into their own survival. However, the deaths were not very convincing and the film also made many long pauses, as a result of which it began to get boring. It is still worth a watch but there are better ones with similar concept. Saw films are probably the top ones with this type of concept.