Season 4 Plot
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 aired on April 7th, 2021.
Season 4 Episodes
1. Gray Suspect
April 7th, 202145 min
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.
2. Murder Designer
April 14th, 202145 min
3. Best Day
April 21st, 202145 min
4. Prayer
April 28th, 202145 min
5. Killing Blueprint
May 5th, 202145 min
6. Cursed Picture
May 12th, 202145 min
7. Murder Puzzle
May 19th, 202145 min
8. Hedgehog in a Locked Room
May 26th, 202145 min
9. Flying Suspect
June 2nd, 202145 min
10. Episode 10
June 9th, 2021
11. Episode 11
June 16th, 2021
12. Episode 12
June 23rd, 2021
13. Episode 13
June 30th, 2021
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