A kidnapper disappeared 15 years ago without a trace. Five days before the case's statute of limitations expires, someone anonymously leaves a flower at the crime scene. A few days later, another kidnapping takes place using the same method on a similar target. Three people team up to solve the case before it's too late: the grandfather (Song Young-chang), who lost his granddaughter right in front of him, the mother (Uhm Jung-hwa), who has been searching for the person who abducted her daughter 15 years ago, and the detective with a guilty conscience (Kim Sang-kyung), who puts everything into this long-unsolved case.

The family of 20-year-old Ohta is celebrating his birthday in a restaurant. What was supposed to be a happy familiar reunion turns into a big mess.

Pu Pu is dumped by her boyfriend whom she loves. Before she moves out, she asks to listen to "their song" just one more time, that is the hidden track by Jay Chou. Then she leaves him and goes to her sister's place in Hong Kong. All the while she is there, she searches for the same song, the "hidden track", and from this it leads her onto a journey of discovering love and a new beginning. Despite the whole movie revolving around Jay Chou's song, Jay Chou plays only a cameo part.

Young-Woong is a psychiatrist (Kim Kyeong-Ik). He has been married to Soo-Hyun (Jin Hye-Kyung) for 10 years, but their love has waned and they now feel indifferent towards each other. One day, Soo-Hyun's daughter Haru (Ayaka Tomoda) appears before them. Soo-Hyun gave birth to Haru while she was studying in Japan. Haru carries a wounded heart from her boyfriend's betrayal. Soo-Hyun asks Yoong-Woong to treat her daughter. Through their consultations, Young-Woong begins to dream of more than just a doctor and patient relationship.

Asahiyama Zoo in Hokkaido, is the northernmost zoo in Japan. The unpopular zoo welcomes a new zoo keeper, young Yoshida (Yasuhi Nakamura), who has more affection for insects than people after years of being bullied at school when he was young. Yoshida soon realizes that Asahiyama Zoo is facing a financial crisis and the zoo director Takizawa (Toshiyuki Nishida) has been doing everything in his power to save the zoo from closing down. Moved by Takizawa's passion, Yoshida and other zoo keepers came to share the zoo director's belief that one's dreams can come true, and together they tackle this seemingly impossible task of revitalizing Asahiyama. A breakthrough arrives in the form of “Behavioral Exhibition,” a method that is pioneered by Ashiyama's zoo keepers and which eventually makes the zoo renowned throughout the world.

Tanaka Ainosuke was born with a weak left eye. Then one day, his older brother Yumehito dies mysteriously, allowing Ainosuke to receive a cornea transplant from him. After the surgery, whenever there is a shock to his left eye he sees strange images. Ainosuke assumes that the images might be clues to his brother's death and starts an investigation with the help of his junior high school nurse Sayama Hitomi. But just when their probe begins, an unidentified criminal organization appears to disrupt their investigation.