Movies: Spine breaker

A pathologist experiments with a deaf-mute woman who is unable to scream to prove that humans die of fright due to an organism he names The Tingler that lives within each person on the spinal cord and is suppressed only when people scream when scared...

A group of rebellious girls hit the road for spring break but when their trip explodes out of control, they're forced to outrun the chaos they've created....