In this episode, DI Sleet is joined by Radio One DJ Greg James. Our detectives learn that there has been a murder at the Successville Art Gallery - Reese Witherspoon (owner of Successville's chain of bars, the Witherspoons) has been killed. Crime scene officer Brian Cox shows them the body, and Greg takes note of any clues that might help them solve the case.Greg is put through his paces as he and Sleet meet three suspects:The Reverend Gary Barlow - Successville's man of the cloth who works at the Church of the Actual Madonna. The Reverend tells the detectives about a mysterious 'anti-sin' cult operating in Successville.Casino owner Justin Bieber - Reese owed Bieber money - she died heavily in gambling debt. Was this enough motive for Bieber to take her out, to send a message about people who didn't pay their debts? Greg goes in tough to try and find out.Strip club owner Mary Berry - owner of Successville's male only strip club Soggy Bottoms and professional rival to Reese. Did Berry have something to gain from getting Reese out of the way? Will her eye for attractive young men distract Greg from the case?After meeting all three suspects, Greg gets a tip from informer Dynamo that the ominous anti-sin cult are meeting in the woods that night. He must infiltrate the ceremony and try to catch the killer. Have you been paying attention? Did you spot enough clues to work out who killed Reese Witherspoon?