Watch 'The Strain's' creepy, body bag-filled new teaser

"The Strain" can't seem to stop being creepy. If these teasers show anything, it's that FX's vampire thriller is shaping up to be one of the scariest shows on TV.

The latest promo for "The Strain" features many body bags, all lined up. Seems simple enough, until one of them moves just the littlest bit. It definitely looks like the bodies will be piling up, but there's no telling how long they'll stay dead.

"The Strain" is set to debut in the summer on FX.
Photo/Video credit: FX