If you weren't looking for Archer , here are two other possibilities:
A highly controversial 2004 miniseries by Brad Meltzer that reimagined the Silver Age of DC heroes as a dark murder mystery. It is often discussed in "retrospective" blog posts like this review on the m0vie blog . [S12E1] Identity Crisis
Season 12 of Archer is sometimes confused with other long-running series; however, the cult classic ReBoot also has a well-known multi-part story titled "Identity Crisis". If you weren't looking for Archer , here