Doberman Cop

The burned remains of a young woman discovered in Shinjuku, Tokyo. The police comes to the conclusion that its the work of a pyromaniacal serial murderer. The murder victim is identified as Tamaki Mayumi, a native of Ishigaki, Okinawa. As the investigation unfolded, her former boyfriend, a former rider of a motorcycle named Mikawa Choei emerged as a suspect. But Kano did not agree Mikawa is the suspect. Kano started conducting the investigation himself to search the real criminal person.
(Source: IMDb)
~~ Adapted from the manga series "Doberman Keiji" (ドーベルマン刑事) written by Buronson (岡村善行) and illustrated by Hiramatsu Shinji (平松伸二).