A few months after moving to a new neighborhood with my wife Ai, I am already sick of its growing web of obligations. When residents are forced to attend a local camp, I am too busy with work and send Ai in my place. Hours after she leaves, I learn by phone that she is the only woman there. Two nights and three days cut off from the outside world, a weak signal, and my normally light-drinking wife already drunk—looking back, every detail was suspicious, but I failed to notice anything wrong at the time...