Couples Retreat (open)

Picture this: a vibrant young woman dressed nicely in spring attire, holding hands with an attractive, slightly older man. They're chatting and laughing, with the occasional meaningful look.

Now zoom in on that picture- focus on a lonely tree next to the walkway the couple is walking on. There's someone behind that tree: a man in a trenchcoat, holding a camera and taking pictures of the couple. To the outside observer, this man is a voyeur or a stalker.

However, he was investigating the couple- specifically, the older man, a married man who was currently spending personal time with a woman who was definitely not his wife.