Man to Subway Line. Lee falls asleep in the subway and wakes up far behind the terminus. While trying to find his way back to the surface, he comes across a bizarre object that changes his life forever.

Kyle Anderson set out with his best friend Ben Miller for one last hurrah, revisiting a the woods behind their childhood homes and the mysterious cave they discovered there, before Kyle impending nuptials with his long time girlfriend, Olivia. What neither man knew was that after that day neither their bodies, nor their relationship, would ever be the same.

Behind every great horror host, there's a great horror parasite...