"Paranoia Agent" is a psychological thriller anime that combines elements of mystery, horror, and surrealism. If you're looking for anime with a similar tone, themes, or psychological aspects, here are some recommendations:
"Paprika" (2006) - Directed by Satoshi Kon, the same mind behind "Paranoia Agent," "Paprika" is a mind-bending psychological thriller that delves into dreams, reality, and the thin line that separates them. It explores similar themes of identity, subconscious, and the human mind.
"Perfect Blue" (1997) - Another masterpiece by Satoshi Kon, this anime movie follows the story of a retired pop idol who faces a terrifying stalker and struggles with her sanity as the boundary between her real life and her acting roles becomes blurred.
"Serial Experiments Lain" (1998) - A thought-provoking and mind-bending cyberpunk anime that explores the relationship between the virtual world and reality, with a heavy emphasis on psychological and philosophical themes.
"Boogiepop Phantom" (2000) - This anime series revolves around urban legends and the mysterious Boogiepop, who is said to be the angel of death. The show delves into the psyches of various characters, uncovering their fears and dark secrets.
"Monster" (2004) - A psychological thriller about a brilliant surgeon who must confront his past when a former patient, now a deranged psychopath, resurfaces. It's a dark and intense journey that explores the depths of human psyche and morality.
"Texhnolyze" (2003) - Set in a dystopian underground city, "Texhnolyze" is a dark and brooding anime that examines the human condition, exploring themes of power, violence, and identity.
"Ergo Proxy" (2006) - This anime takes place in a post-apocalyptic world where humans and androids coexist. It deals with themes of self-discovery, existentialism, and the meaning of life.
"Serial Experiments Lain" (1998) - This cyberpunk anime follows the story of Lain, a young girl who becomes increasingly involved with the Wired (a global computer network), leading to questions about identity, reality, and the nature of consciousness.
These anime series and movies should offer you a similar level of psychological depth, mystery, and thought-provoking themes that you enjoyed in "Paranoia Agent."