Shuden Bye Bye

At midnight, near the Tachikawa Station, Sato, still in his suit, runs to catch the last train. There are other men also running to catch the last train. At the crossroad, people are divided into two groups and they run down two different paths. Sato follows the group that goes down an alleyway Unfortunately, Sato can't get to the train station in time. The last train leaves in front of him. Sato then notices that the other men he followed have suddenly disappeared. He's alone now in the Tachikawa Station and doesn't know what to do.