Tsumabuki plays the lead character Sasaki Shinichi who works as a cleaner and believes wholeheartedly in the innocence of a woman on death row despite what the world thinks of her. The woman in question i.e. Tanaka Yukino is a childhood friend of Shinichi and is given the death sentence for setting fire to the apartment of her ex-boyfriend and killing his wife and children in the process. As Shinichi knows Yukino since they were young and has been indebted to her due to some reason, his instinct tells him that she can't be the killer and goes searching for people who feels the same way. However, as he digs deeper into Yukino's past, he finds out a totally unexpected story and truth behind the case.
Hayami revealed that it was Tsumabuki who approached him about the dramatisation of his novel last year over the phone although he admitted that he was skeptical initially over whether things would go well. However, he was moved by Tsumabuki's strong feelings for this proposal and felt that it would be safe to entrust him with this story. Tsumabuki commented that when he read the novel which he regarded as his No.1 favourite among Hayami's works, he had an urge to act in this drama which posed the questions of what it meant to be happy and the definition of what is happiness. As such, he hoped to put in his all to make this story which talks about justice and just believing in something till the end become a drama which viewers would look forward to seeing every week. Tsumabuki's name will also appear in the credits section as the planner other than being the lead actor.
Sources: Yomiuri Hochi / Eiga.com / Oricon / Natalie