The TV series "Backup Plan" is a comedic detective story about the strange collaboration between an unlucky police officer and two morgue attendants. Lieutenant Saikin takes on another hopeless case and goes to the forensic experts for a report. But the attendants turn his perception of investigations upside down and accurately identify the killer's identity just by looking at the victim's body. It turns out that one of them is a retired repentant criminal, and the other is a former detective. Together, these polar personalities are capable of true miracles.