Roger Mills, a Harley Street specialist, is taking a sailing holiday on the Norfolk Broads. When his six guests find him at the tiller of his yacht with a smile on his face and a gunshot through his heart, all six fall under suspicion.

• Rīgas kinostudija
• Marianna Vertinskaya
• Mirdza Martinsone
• Ģirts Jakovļevs
• Lembit Ulfsak
• Nikolai Kryukov
• Antanas Barčas
• Janis Paukstello
• Oļģerts Dunkers