The story follows the three different family, Kim- the poorest, Hwang - the richest, Choi- the powerful.

Everything started to change when 3 dead bodies been seen by the sweet river of Riverfall.

The 3 family has been always the talk of the town in nor out. Their children Taeyeon, eldest son of the Kims. Tiffany, youngest daughter of the Hwangs. Sooyoung, one and only son of the Choi's, with their other friend Jessica, Yuri, Yoona, Sunny they explore the small town, the darkness, the madness beneath the RiverFall's wholesome facade.

Guess who those 3 bodies are, and which family are they?