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.
謝章穎
as Vitamin
黃姵嘉
as Molly Lin
Zong-Hua Yang
as Uncle A-Shang
Hao-Hsiang Hsu
as Choreographer
李運慶
as Chi-Wen Lee
黃婕菲
as Show-Yu Chen
Tien-Ming Hsieh
as Show-Yu's husband
黃采儀
as Molly's mother
Yu-Ting Hsu
as Dancer
