Telling a good story when you're limited to such a small amount of episodes is not easy and they managed to do it here. Four episodes is really a really small amount of time to tell a story like this one, and although they do manage to do it with maybe 2 other episodes it would'nt have felt rushed especially the last episode. The cast does such a great job on this story, both leads have great chemistry. Also both leads did great when it comes to acting but to me the one that stands out is the actor that plays Mark.