source Wiki 720p; AAC Japanese audio. no subs. A series of grotesque murder cases takes place on rainy days. Detective Hisashi Sawamura (Shun Oguri) works to catch the murderer like he has done with past cases, but he soon realizes the murderer's next target is his wife and son. A man in a frog mask is a suspect. Based on the manga series "Museum" by Ryosuke Tomoe (published from July, 2013 to January, 2014 in Weekly Young Magazine).