Harrison attends a "kill list party" where he is celebrated as a hero but ends up overdosing on fentanyl-laced drugs.
In a rage over the overdose, Dexter hunts down the drug maker, Jasper Hodge, and kills him by forcing an overdose of his own drugs. [S1E5] Runaway
There are several TV shows with a first-season fifth episode titled (or very similar). Depending on which series you are looking for, here is the relevant content: Dexter: New Blood (2021) This is the most widely discussed episode with this title. Harrison attends a "kill list party" where he
Angela discovers "Jim Lindsay" is actually Dexter Morgan after finding his obituary online. Harlan Coben's Run Away (2026) Depending on which series you are looking for,
Angel Batista makes a guest appearance at a police conference, unknowingly revealing to Angela that Dexter and Deborah are supposed to be dead.