In a rundown, urban neighborhood, a meek and clumsy florist's assistant discovers an unusual plant that he hopes will turn his fortunes around and win the affection of his coworker, whom he secretly loves. The plant, which he finds after a total eclipse of the sun, has a mysterious and menacing appearance, unlike anything he's seen before. Naming it after his crush, the assistant dreams of fame, success, and romance, all seemingly within reach thanks to his newfound botanical curiosity.

As the plant grows, it becomes clear that it is no ordinary flora. It has a voracious appetite for a very specific kind of nourishment, leading the assistant down a dark and morally ambiguous path. The more he feeds it, the more the plant thrives, attracting a wealth of customers, media attention, and the not-so-benign interest of his neighbors and a sadistic dentist. Caught between his desire for a better life and the increasingly demanding needs of the plant, the assistant must confront the consequences of his choices as he gets entangled in a complex moral dilemma.