Matsuzaka plays the role of Usobuki Tadashi who is a mysterious man with red eyes, wears black suits with a wine-red shirt and possesses a special power which will drive people to their death through methods such as curses and brainwashing. However, it is impossible for his crimes to be proven in court thus Usobuki cannot be taken to justice for the killings he did on behalf of his clients. As this is the first time that he is playing a dark hero i.e. one who has both evil and good traits, he is very excited about playing this character since there are many unknowns ahead for him. He doesn't think that Usobuki is a complete baddie but the fact that he helps people satisfy their desires may not be the best thing to happen for them.
Shiraishi commented that Matsuzaka has the image of a nice young man but he thinks that the latter will be able to convey the chilling side of Usobuki through the look in his eyes and how he speaks. As for the producer Nakahata Yoshiyuki, he revealed that when he first read the manga, he already had the image of Matsuzaka in the lead role and hopes that the viewers will also enjoy seeing his performance.
Source: Yomiuri Hochi / Oricon / Eiga.com