To enter the afterlife, one must first pass through a door unlocked by the angel of death, but when the keys to those doors are stolen, the entire human race is rendered immortal.
 
With the world heading into global crisis and the very fabric of the universe at risk, Death tasks her son, the half-angel/half-human Orpheus, with the retrieval of the keys.
 
Orpheus soon encounters Evan, a warlock who lives in fear thanks to laws punishing the use of magic.
 
The Witchfinders are already pointing the blame for the immortality at the witches and warlocks of the world, so Evan agrees to help Orpheus in the hopes of fixing things before anti-magic rhetoric reaches an all-time high.
 
In a quest that pushes them both to their limits, what neither boy expects is to find there may be more to life, each other, and themselves than they ever thought possible.