As their bodies give way to Parkinson's disease, two New York actors put their hearts into one final Off-Broadway production of Beckett's "Endgame," the play that posits, "there's nothing funnier than unhappiness."。After Carlos, an impoverished teen from a fractured home, receives a desperate note from Sarah, a pen pal he lost touch with a year ago, he uses her letters to solve the mystery of her disappearance and crimes she may have been a part of.。