Terrible. Lynskey gets very little to play, other than annoyed, while Wood has nothing to do other than perform a collection of quirks. Knew during the opening bit with the dying woman that this wouldn't be for me, and was proved right time and time again throughout the running time.
A point regarding violence. Like Saulnier in Blue Ruin and Green Room, Blair has scenes of very brutal and graphic violence. Found it really unpleasant and gross here when the context is otherwise more lighthearted.