Une amitié improbable se développe entre le batteur bipolaire d'un groupe de rock et un adolescent touché par le syndrome d'Asperger et placé en institution.
Colm is in his mid-forties, married, with two teenage children. Still grieving the death of his father, a destructive figure in his life, Colm struggles with his relationship to his own son, whilst at work a recent takeover threatens his job. Unable to share his vulnerability with his wife, Colm’s world is falling apart around him. In the midst of this crisis, Colm finds a comfort that no one else can provide but Jay.