Searching for the true killer of Count Drebber, Sherlock and John set a trap for the culprit using a wedding ring found at the murder scene as bait. After a struggle in which the ring is lost, Sherlock is able to deduce who the real killer is.
You lost your ring at the scene?
فقدت خاتمك في مسرح الجريمة؟
Sie haben am Tatort einen Ring verloren?
Vous avez perdu une bague là-bas ?
Perdeu o seu anel na cena do crime?
Вы обронили там кольцо?