Zora Lehmbeck lost her husband in the biggest mass shooting in American history--that massacre was a drop in the bucket compared to the horrors of Black Mariah.

Zora is suffering from extreme PTSD after witnessing her husband’s murder during the 2017 Las Vegas mass shooting. She is at a club for the first time since the tragedy, but the throbbing music and crush of bodies force her to flee before the fog machine fills the air with smoke and a mysterious lethal agent.