At 2 a.m., trapped in the office, I checked the hidden baby monitor I’d installed to see why our newborn was still crying, and my blood ran cold. On the screen, my mother stormed into the baby’s room, hissed, “You live off my child and you still complain?” and yanked my exhausted wife’s hair by the crib. My wife didn’t scream; she froze. When I reviewed the saved recordings, I uncovered weeks of abuse. She thought I’d never know, until I got in my car and decided her life under my roof was over.