"The summer of 1995 kicks off with a party in [a] mine where six high school students witness a horrifying crime that changes the course of their lives. The six couldn't be more different, ... [but] when they realize that they can't trust anyone but each other, they begin to investigate what happened on their own. As tensions escalate in town to a breaking point, the six make a vow of silence, bury all their evidence, and promise to never contact each other again. Their plan works--almost. Twenty years later, Jia calls them all back to Wesley Falls--Maddy has been murdered, and they are the only ones who can uncover why. But to end things, they have to return to the mine one last time"--