Revival (1970)

On one miraculous day in rural Wisconsin, the recently deceased suddenly rise from their graves. But this is no zombie story, as the 'revived' appear and act just like they once were. When local officer and single mother Dana Cypress is unexpectedly thrown into the center of a brutal murder mystery of her own, she's left to make sense of the chaos amidst a town gripped by fear and confusion where everyone, alive or undead, is a suspect.