In the center of the plot of a family animated film "Monster family» is a family of Uishbon, has a small problem with each other. Until recently, they were genuinely happy together, but a strong load, monotony and stress have led to the fact that lately the family members get along is not as good as they would like. Seeing what is happening with the hand, mother Emma decides to change the situation. She doesn't want to lose family, so tries to give the residents understand that they are important to each other and should not be parted.
Events begin to unfold at a moment when Emma plans to another fun event. However, normal walk turns into a nightmare for family members when they are under the influence of dark powers. In an instant become monsters: the father becomes a monster of Frankenstein, mom becomes a vampire, his daughter transforms into a mummy, and their youngest son turns into a werewolf. Now they need to come together as never before, because the only way they can compete with the forces of evil and return to a normal appearance.