New York loser Graham Lynch finally has a shot at a job as driver in Dante Farinelli's cab service. To keep it, he must start instantly and thus arrives late to collect for the holidays his doting daughter Sam, whose bitch mother Amber is waiting for an opportunity to demand sole custody. Amber's colleague air attendant Claire Bishop, whose marriage to marine biologist and future novelist Ryan Bishop fell trough after their boy Ben's fatal car accident, was to hand Sam over and insists to take part in the search. Ryan's book fantasy element, Monty the magical dolphin, invented for Ben, bizarrely brings everyone together.