One of the Trojans' players drops dead during the match and when it is revealed he has been poisoned, suspicion falls on his teammates as well as his former mistress.
The police set a trap by putting a chemical on top of the poison, which turns the skin black after a few hours.
The film stars several Arsenal players and members of staff such as Cliff Bastin and Eddie Hapgood, although only manager George Allison has a speaking part.
The Trojans’ players therefore wore similar white shirts in close up sequences which were then cut in with the match action.
[1] Dickinson planned a follow-up, The Denham Studio Mystery, which was intended to incorporate footage from the abortive film I Claudius, but this fell through.