Shim So-young

During a live stream in a haunted building, a streamer goes missing, sparking the curiosity of fellow streamers. They decide to take a look for themselves, believing that the missing streamer may have fabricated his video. But as they explore, broadcasting their journey live along the way, they begin to realize that there's more to the building than it seems: it was previously the site of abductions and murders of innocent people.

A woman attempting to reboot her life returns to Korea and becomes entangled with her childhood friend — with whom she shares a complicated history.

Twin sisters, whose similarities end with their looks, swap identities amid personal struggles — embarking on a journey to rediscover love and life.