Keep Quiet by Lisa Scottoline

Jake Buckman wants to be a better father to his sixteen-year-old son, Ryan. On a rare night out together, a split-second decision turns into a tragedy that changes everything. In a moment of panic, Jake makes a fateful choice—to protect his son by covering up what happened. But secrets have consequences, and as the lie deepens, father and son find themselves entangled in a web of guilt, suspicion, and betrayal.

With each passing day, the truth becomes harder to hide—and the bond between them begins to fracture under the weight of what they’ve done.