After taking the past year off, the series makes its static-filled, lo-res return with "The Marked Ones" - or "Paranormal Activity 4.5" - with a couple of much appreciated tweaks in tow. Gone, for instance, are the blue-hued night sequences. We also get to leave the house. They may not sound like massive changes, but little stuff like that helps make this spin-off - even with its issues - seem fairly fresh, fun and freaky again.