Reverie

While recovering from an attack that leaves him without his memory, gay teenager Kane Montgomery stumbles into a world where dreams known as reveries take on a life of their own, and it is up to Kane and a few unlikely allies to stop them before they spillover into the waking world.
Kane Montgomery was found half-dead in the river. He has no memory of what happened, and why his life seems so different now. The entire world feels off, reality itself seems different. Three almost-strangers claim to be his friends and the only people who can truly tell him what's going on. As unimaginable worlds materialize out of nowhere-- the gym warps into a subterranean temple, a historical home nearby blooms into a Victorian romance rife with scandal and sorcery-- Kane realizes that nothing in his life is an accident. A sinister force threatens to alter reality for good, and Kane and his friends must stop it before it unravels everything they know. -- adapted from jacket.