Top TV Shows From Summer 2010
Remember What You Were Watching in Summer 2010? We Bet It Was One of These 12 TV Shows
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The twisty teen drama kicked off its run in 2010, launching several years of melodrama (and a couple of spinoffs). The premise, at least at the start, was simple: four high school girls who used to be close reconnect a year after their mutual friend's death when they all begin getting mysterious and threatening messages — which, eerily enough, seem like they could only be from their dead friend.