The Invitation

21 ice hockey players for the NHL, AHL and ECHL are either kidnapped by force or tricked into coming to the mysteriously abandoned "Masquerade Island" theme park. When they arrive, they learn that the host is nonexistent and that they've been abandoned. Also there is no way out. And to make matters worse, each of the "guests" are being murdered at random. At first it seems obvious to everyone who is killing, until that player is killed themselves.
So who is killing?
And who will survive the madness inside the park?