“Bad Blood” (** out of four) was a moody but meandering horror thriller about a seemingly happy couple (Xavier Samuel and Morgan Griffin) who go on a vacation getaway when dark secrets from the past begin coming to the forefront and she gradually realizes he may be a demented murderer and she has to fight- both psychologically and physically- to stay alive. Well-directed thriller is layered with atmosphere and a good performance from Griffin but story plods for too long and never builds sufficiently. Yet another rehash of “The Shining” that is a shining example of why that film remains a classic.