In Hand

Episode 4 (1x4)

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A threatening letter arrives at the Cabinet saying there’s a new pathogen that causes people to commit suicide. As proof of that, the letter says that one girl has already committed suicide by jumping off a building, another girl has committed suicide by overdosing on drugs, but failed and is now hospitalized, and one boy has gone missing for 2 days. The letter claims that a particular pathogen is causing this behavior, but is it even scientifically possible? Meanwhile a girl shows up claiming that she and the 3 victims mentioned in the letter were all childhood best friends who signed up for a paid clinical trial together. Himokura suspects that the answer lies within the clinical trial, so he signs Takaie up to participate in it.