New Beginning

John McGrath returns home from work with what he assumes is the start of flu. When he goes to bed he has a raging fever and nausea. When he wakes up the next morning, the power is off in his flat and when he gets up the strength to go outside he finds dead bodies, wrecked vehicles and no other living person. After finding his landline and mobile inoperable, he realizes he is alone in a world of silence. Is he the only one alive?