Vin, a down-on-his-luck young tech entrepreneur forced out of the software company he started, takes a job house-sitting an ultra-modern Seattle mansion whose owner has gone missing. There he discovers a secret basement lab with an array of computers and three large, smooth caskets. Inside one he finds a woman in a state of suspended animation. There is also a dog-eared notebook filled with circuit diagrams, beautiful and intricate drawings of body parts, and pages of code.
When Vin decides to climb into one of the caskets to see what happens, his reality begins to unravel, and he finds himself on a terrifying journey that asks fundamental questions about reality, free will, and the meaning of a human life.