Dark Passage

A LIFE ON THE VERGE OF COLLAPSE 
Tyson Barrett used to be happy, used to have a wife, a son, a thriving business. Now he has nothing, just long, sleepless nights broken only by nightmares so terrifying they threaten his sanity. So when he discovers an underground drug trial that will "cure" him, he jumps at the chance. 
A CURE THAT SOUNDS TOO GOOD TO BE TRUE
Everything seems great until things from Tyson's dreams start showing up in his waking life. Items from a dark past he thought he left buried at Sunnybrook Asylum. And when the nightmares threaten to return in full force, eerie trinkets aren't the only things waiting to come through.
AN EVIL THAT CAN'T BE STOPPED
Now Tyson must face a terror that has stalked him since childhood or risk losing everything he holds dear.

The mind is full of halls and some of the darkest passages lead to rooms better left closed.