Death is becoming something of the past..
The Grim Reapers in charge of making sure souls move on into the afterlife find themselves short of work after big businesses figure out a secret to immortality... Resurrecting the dead, taking the souls and using android bodies as vessels.
Without souls to reap, they're out of a job, so they take up other work, like customer service... or fast food. While also working to restore the balance between life and death, as well as take down who is responsible for the resurrections.