riads Yardies and Onion Bhajees Once Upon A Time In Southall is based on the novel The Stone Shiva by Manish Patel The movie centres on the Holy Smokes crime syndicate and the reallife 6 million Heathrow Airport robbery It's a fight to the finish as the Asian Holy Smokes battle the Chinese Triads Jamaican Yardies and the English Firm to see who rules London