The show had various directors including Toru Murakawa, Kiyoshi Nishimura, Yukihiro Sawada and Yasuharu Hasebe.
[1][2] Shunsaku Kudō sets up office in a rundown building as a private detective after spending five years as a cop in San Francisco where he became familiar with firearms.
Kudō was originally envisioned as a standard hard-boiled type but star Yūsaku Matsuda looked too much like a rebel so the character ended up riding a Vespa scooter, smoking Camel cigarettes and dressing in a black or white suit and sunglasses.
Also living in the building are two young girls (American actress Nancy Cheney and Kahori Takeda) who fuss over the detective.
[1][3] Tantei Monogatari with its easy-going humorous style earned high ratings while on the air and later acquired a cult following.