Why?

Four students plan to go on the best weekend trip ever without realizing that this will be their last trip that they take as they don't know the dangers that await them in the Welsh sleepy village of Parkmill. For the last ten years they have kept a secret to themselves and now they will have to pay dearly for what they watched happen to the poor boy called Daniel they bullied to his death. The family of Danny lie in wait for these students and want to teach them that they messed with the wrong family.