On a rainy night, Meguri, a married woman, checks into a minpaku she had reserved. Then, Ichiya, a company employee on a business trip who had reserved the same room, appears, resulting in an unexpected double booking. Unable to reach the management company, that night, 'two strangers end up spending the night under one roof'. Awkward small talk, a takeout bento dinner - only each other's loneliness gradually becomes visible. A sudden power outage with a clap of thunder. Ichiya, who rushes to where the screams are coming from, finds himself facing Meguri, completely naked in the steam of the bath. And as they talk, he learns that she is lonely because 'her husband is abroad and she is alone'. When Meguri finds Ichiya masturbating while thinking of her late at night, the distance between the two of them collapses decisively - "Were you thinking of me?". It was supposed to be just one night, but they seek each other out again and again, and each time their hearts draw closer.