Merricat lives with her sister Constance and Uncle Julian. The three are survivors of an arsenic poisoning case that killed the rest of their family five years ago. Merricat is a daring woman with a very rich imagination, protecting the family property with the help of “spells”. Despite the fact that girls are hated by almost all the inhabitants of their city, they enjoy an idyllic life until their cousin Charles makes an appearance. Constance is charmed by Charles, and Merricat hates him for coming to them. As Charles and Merricat battle for control, the tragedy threatens to strike again.