A serial killer reappears after 20 years of silence and contacts the BAU with the promise he will kill another victim in the next five days.
| Title | Unfinished Business |
|---|---|
| Genres | Crime Drama Mystery |
| Release Date | 2006-03-01 |
| Episode Runtime | 00 Hours 42 Minutes |
| Season Number | 1 |
| Episode Number | 15 |
| Production Companies | Touchstone Television, The Mark Gordon Company, Paramount Television, CBS Studios, Erica Messer Productions, ABC Studios, ABC Signature, Entertainment One Television, Lionsgate Television |
