I watched "Tag" on last night. It wasn't Amazon Prime free, but it was only $.99.
It's about a group of five guys, now in their 40's, who have kept a game of tag going for 30 some years. One of the guys has never been tagged and therefore has never been "it." Every year, the entire month of May is reserved for playing tag and instead of just the neighborhood, the whole world is the play area. With the untagged guy about to get married the other four hatch a plot to use the wedding to finally corner him and make him "it."
The movie is about the various ways the four guys try to trap the other guy into getting tagged. I thought the concept would run out of steam, but the interplay between the main characters (Ed Helms, Jon Hamm, Jeremy Renner) keeps it going. I suppose I'd give it a 6.5 out of 10 stars.