Can anybody identify this TV show about a female detective aired on HBO or Showtime in 2007 and 2008?
Female detective, sex addict, drinks heavily. An angel appears to her, it is her guardian Angel. She is resistive to the help from him,the show is a lot about their developing relationship . Takes place in Oklahoma city. Her sister was killed in the Terrorist attack there. She is killed in the final episode in an act of heroism.