PSYCHO-PASS Episode 4: Nobody Knows Your Mask
Episode 4 of 22 of PSYCHO-PASS, aired November 1, 2012, 25 minutes. Available with English subtitles and dub where released.
Episode summary
When the CID is brought in to investigate a disappearance of Kimihiko Hayama, they discover that not only has he been killed, but someone has taken over his net avatar, Talisman. The CID tries to track down the fake Talisman in order to find the killer.