The series focuses on Lucifer Morningstar (Tom Ellis), a beautiful and powerful angel who was cast out of Heaven for betrayal. As the Devil, he gets bored and unhappy as the Lord of Hell for millennia. He resigns his throne in defiance to his father (God) and abandons his kingdom for Los Angeles, where he ends up running his own nightclub called "Lux". He becomes involved in a murder case with Detective Chloe Decker (Lauren German), and is subsequently invited to be a consultant to the LAPD. Throughout the series, several celestial and demonic threats come to Los Angeles; at the same time, Lucifer and Chloe end up appreciating and being happy with each other.
Lucifer is based off the DC Comics character created by Neil Gaiman, Sam Kieth, and Mike Dringenberg. Netflix took over the show from Fox after season 3 and is continuing it for a total of 6 seasons. Season 5 is currently being released in two parts.
It's a fun show with decently written characters.