Signal Fires opens on a summer night in 1985. Three teenagers have been drinking. One of them gets behind the wheel of a car, and, in an instant, everything on Division Street changes. Each of their lives, and that of Ben Wilf, a young doctor who arrives on the scene, is shattered. For the Wilf family, the circumstances of that fatal accident will become the deepest kind of secret, one so dangerous it can never be spoken.