A Dog's Will is a comedy movie set in the Brazilian countryside. It revolves around a group of people who are trying to inherit the property of a deceased man, but they face various obstacles and comedic situations along the way.

After 20 years missing, João Grilo returns to Taperoá to join his old friend Chicó and, after his story of resurrection spreads, he is disputed as an electoral candidate by the two most powerful politicians in the city.