This film is an adaptation of a short story of the same name, written by Kao Yi-feng. It tells the story of a green scarab beetle who has transformed into human form. As in the book, he is named "Vitamin." Vitamin surreptitiously enters people's apartments and observes and imitates human behavior. Through Vitamin's perspective as a bystander, the plot leads the audience to explore the unknown stories of various residents. However, Vitamin cannot understand the complex thoughts and desires of humans, and his short encounter with one person is fraught with doubt, conflict, and despair.

A man chooses to leave the city and goes back to his hometown in the countryside. However, he finds that his dream of being a farmer is shattered as the property developers have flocked into this small town in Southern Taiwan. Consequently, the farmland is taken over by holiday homes and villas, which not only look incongruous in the landscape but have destroyed the serenity. A woman who left home lives in one of the villas. She has been trapped in the house both physically and mentally until she meets the man. Their encounter is about to change everything…

A Hakka singer who desires to complete her dream, and an aboriginal woman who wants to break free and a Hakka forensic personnel who has the deepest secret in her heart. These three women are standing out for the Hakka people who are facing difficulties in life.. And the story is about the process that they find for themselves. However, the story starts from two suicide cases.