Left Turn Ahead

"Left Turn Ahead" is the eleventh episode of the second season and twenty-third overall episode of the American television drama series Dexter, which first aired on 9 December 2007 on Showtime in the United States. The episode was written by co-executive producer Scott Buck and Tim Schlattmann, and was directed by Marcos Siega.

Set in Miami, the series centers on Dexter Morgan, a forensic technician specializing in bloodstain pattern analysis for the fictional Miami Metro Police Department, who leads a secret parallel life as a vigilante serial killer, hunting down murderers who have not been adequately punished by the justice system due to corruption or legal technicalities. In the episode, Dexter considers new options while having to deal with Doakes, and Debra discovers Lila's real identity.

According to Nielsen Media Research, the episode was seen by an estimated 0.89 million household viewers and gained a 0.4/1 ratings share among adults aged 18–49. The episode received critical acclaim, who praised Dexter's character development, tension and cliffhanger.