''True Blood'' is the latest to make a story line of family members getting too close for comfort. This plot device has been creeping us out for years to varying degrees; see our take, from not too disturbing (''Revenge'') to off the charts (''Chinatown'')
Marty McFly finds himself transported back to 1955 and the center of his very own causation paradox. He has to cause his parents to fall in love, or he may never be born! Worst of all? His mom's become smitten with someone else: him. Damn you, temporal mechanics!
Image Credit: Everett Collection