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.
John, are you sure you want to help me?
جون، هل أنت واثق أنه في إمكانك مساعدتي؟
John, werden Sie mir wirklich helfen?
John, ¿estás seguro
de que quieres ayudarme?
John, es-tu vraiment prêt à m’aider ?
John, tem certeza de
que quer me ajudar?
Джон, ты по-прежнему
 готов помогать мне?