[DeepL Translation - needs review] Three young men are brought together over a woman who has fallen down a flight of stairs and fallen into a coma; they are locked in a nuclear shelter, and the condition for getting out is to confess who pushed her down. At the same time, outside the shelter, a plan to commit the perfect crime is being carried out through an exchange of e-mails. The all too unusual "reason for the disconnection" is revealed in the last part of the film. And ......! (Kodansha...
