Special Investigation Nine - Season 4
New enemies appear to block the Tokusou 9. As in the past, the Tokusou 9 hold on to their belief that "the case will be solved at all costs" and put their all into solving cases.
Special Investigation Nine: Season 4 - 13 Episode s
4x1 - Gray Suspect
April 7, 2021
A young woman's stabbed body is found about 10 days after her death in a vacant store in a multi tenant building. The Tokusou team begin investigating, discovering her identity and the fact she promised to meet a man on the day of her death. Meanwhile, the suspect of a murder-robbery case is claiming he saw someone else do the crime.
4x2 - Murder Designer
April 14, 2021
4x3 - Best Day
April 21, 2021
4x4 - Prayer
April 28, 2021
4x5 - Killing Blueprint
May 5, 2021
4x6 - Cursed Picture
May 12, 2021
4x7 - Murder Puzzle
May 19, 2021
4x8 - Hedgehog in a Locked Room
May 26, 2021
4x9 - Flying Suspect
June 2, 2021
4x10 - Episode 10
June 9, 2021
4x11 - Episode 11
June 16, 2021
4x12 - Episode 12
June 23, 2021
4x13 - Episode 13
June 30, 2021