Markings of Murder is a very good Indie film. It's entertaining and interesting and an awesome watch. It's visually interesting with an seemingly odd color pallet (seemingly odd, until you 'get it' later on) but the whole film is really quite visually great to look at. The camera placement and the detailed lighting are really something special.
First off, the acting is great. Griffin Cork and Elizabeth Chamberlain are both outstanding actors, and they bring these characters to life. Young actor Sheldon Cheeseman did an awesome job as the son, and really the whole cast did great in telling a compelling story.
Markings of Murder also has great pacing. So often with Indie films, they are in a rush to hit joke, joke, joke, or to hit scare, scare, scare -- but Markings of Murder has great patience, to let the story unfold and simmer just the right amount. To let us make our own hypothesis' and to have those theories dashed in just the right timing. It doesn't drag at all, but it gives just enough room to let the story breath.
And it's got a GREAT score, which is also an 'in universe song' in the film, which is once again, very very neat. In other words, characters in the story are aware of the theme song, and yet that's the underlying theme music too. So listen for that when you watch it.
It is still a low-budget indie, so there are some hiccups here and there, but if you stack it up against most of the indies I've seen, it's a 8/10 in my books - a very worth while watch!