Easter Nightmare is based on the Fourth game in the "Nightmare" series "The Rabbit House"

Told entirely from a first-person perspective, the film follows George, a disabled boy struggling to survive a zombie outbreak in Japan alongside his older brother Shin. When they encounter hostile survivors and growing danger, George is forced to rely on his resilience, his wits, and unexpected allies. Together, they navigate collapsing safehouses, relentless threats, and the search for life-saving Zombrex as they fight to stay alive in a world overrun by the undead.