Best Dead Friends Forever

Five friends, one hiding a secret that could cost the other their lives.
"The Five Musketeers." or just a bunch of chaotic idiots, and close friends finally seeing each other after three months to go a theme park for a week. Everything is going smoothly and everyone having fun. Suddenly, chaos strikes and The Five Musketeers have to fight to survive...
Even if it means killing your own best friends...