There is nothing more stressful than a television season finale. Each respective episode could bring the couple you've been rooting for together, or possibly — and quite literally — throw your fave under a bus.
But which finales truly bring on the most gasps? Do dramatic deaths or giant secrets revealed make for the most memorable finales? Or, is the lack of a twist ending even more shocking? We've rounded up some of the most edge of your seat, call your friend during the commercial break, message board outrage-worthy season finales. In fact, they're so heart-stopping our blood pressure is going up just thinking about them.