An impoverished jeweller's assistant places an unlikely bet in an effort to raise the funds to buy the perfect gift for his secret love. If a famous jockey finishes first in all his races at Goodwood, he will win a fortune. But when the first three races go according to plan, the young man faints and a series of slapstick misunderstandings ensues. Norman works in a jewellers workshop and fantasises (in the nicest way) about meeting the window dresser across the road from his workshop. He wants to buy her a diamond pendant but calculates it will take him over 100 years to save up for it. He is talked into betting a pound on a six horse accumulator at the Goodwood races with a slightly shady bookmaker. When he has won on the first five races, the bookie owes him over 16,000 pounds and everyone begins to worry. Everyone's future depends on a single race ... what can be done?