This last episode of "Madmen" was strange. Portraying the times, the sixties, it had in it "free love" and "drugs". Everyone at the ad agency receives a shot ---- a concoction of different drugs that get them high. The behavior that results is very strange, giving the show a surreal quality. Don, who's been acting strange all season, is especially weird in this episode. The flashbacks to his life as a child --- linking the past and the present are very effective.