Riverplay

Riverplay (2001) is a thriller directed by Olaf Ittenbach rated 5.5/10.

Three couples meet by chance during a paddling trip somewhere in rural nowhere. What no one suspects is that Phil and Linda are two cold-blooded killers who have already brutally murdered several unsuspecting hikers. While at the beginning each couple has its own problems, a fight for naked survival soon breaks out in the idyllic nature...