Cruel summer

the long version

A year after the suicide of one of their friends, the rest of the group decide to spend the summer together in a holiday villa in the Mediterranean. They're hoping to get over the terrible events of the previous year, but then a new guest arrives - claiming to have evidence that the suicide was actually murder. When she is found dead, it becomes clear that the killer must be one of them - but who is it? And will they strike again?