An unforgettable stormy night. A family returns home with their newborn baby. But the arrival of the new arrival awakens more than joy. From the roar of rain and thunder, a macabre melody emerges that lulls the adults to sleep, allowing a terrifying creature, with simian features and a voracity for newborns, to stalk from the shadows. Only Max, a six-year-old dog with an unerring protective instinct, seems to resist the monster's melody.
Will Max's courage be enough to face the unknown and protect his family....?