‘My parents were liars,’ the narrator Ruthie says at the beginning of Sarah Manguso’s unsettling debut novel. Looking back on her abusive childhood in a New England town near Boston in the 1980s, she recounts how her father wore a fake Rolex that didn’t work, and her narcissistic mother was obsessed with social climbing, pinning the wedding announcements of local Mayflower descendants on the fridge as if she knew them.