" A Priest Walks into a Bar " is most famously the ninth episode of the first season of the TV series , which aired on March 21, 2016. It is widely considered one of the show's most emotionally resonant and pivotal episodes, as it deeply explores the protagonist's relationship with humanity and his "Father". Plot Summary
At the start, Lucifer's therapist, Dr. Linda Martin, suggests he is lonely. His connection with Father Frank proves that even the "Devil" can find genuine friendship. Episode 9: A Priest Walks into a Bar
"Lucifer" A Priest Walks Into a Bar (TV Episode 2016) - IMDb " A Priest Walks into a Bar "
The case ends tragically when Father Frank is killed while saving a young man. In his final moments, Frank reveals he knew Lucifer’s true identity all along and tells him, "Remember that your father has a plan". Linda Martin, suggests he is lonely