Lin Han, a 16-year-old boy who had just moved to a seaside town, went to the swimming pool to cool down and woke up clutching a swimming ring. Everyone around him had disappeared? The other two people met unexpectedly and moved forward together to find a way out. One key after another opens the cabinets one after another. Where is the end point?
Strange dreams, giant goldfish swimming, the key to No. 241, The door that cannot be opened...
The desire to go home is so strong.
However, everything is like Schrödinger's cat. Once the door is opened, the ending will not change.