Mysterious Nursing Home

This is a nursing home that has attracted national discussion. It requires a membership fee of one million to stay in. The reason why it is so expensive is because the nursing home claims that there is a "travel door" in the nursing home that can go back to the past. People who don't believe it think it's a gimmick used by nursing homes to defraud money. People who believe it decide to come to a nursing home even if they lose their money. Some people want to go back to the past to make up for their regretful past through the "travel door", and some people want to review a certain beautiful scenery in the past through the "travel door"... People who enter the nursing home have different thoughts and look forward to the world behind the door.