Couples Retreat Murder

Also known as 夫妻隐居谋杀案, Roses Are Red, Blood Is Too

Becky and Jim are married but are having troubles. So they head to a remote couple's retreat to try and save their marriage. They end up going with their friends who are coupled up as well with issues. However, the couples retreat is not all it seems when accusations are made, someone goes missing, and another is found dead.