14. Who is That Masked Man

Complete story — includes the ending

Three members of a Chinese triad are murdered. Hoping to prevent a gang war, Gregson turns to Sherlock and Joan. Sherlock deduces the victims let their killer into an arcade late at night. The crimes are traced to a mortician who, using his skill at creating lifelike masks for his disfigured clients, disguised himself as an old woman the triad members trusted. The mortician is terminally ill and, masquerading as the triad's leader, orders the head of an assisted living facility (who is involved in a triad scam) to funnel the fraudulently obtained funds to a new bank account in order to provide for his family. Sherlock and Joan scam their way into the house of the daughter of Morland's lover Sabine because Sherlock suspects that Sabine was involved in the assassination attempt that cost her her life. Furious, Morland insists to Sherlock that Sabine's death was his full responsibility. However, Morland gives Sherlock access to her e-mail account, revealing that it was hacked by a Russian hitman who now resides in a super-maximum prison in Russia. Morland also provides Sherlock with his mother's medical records, revealing to him that he was not the first addict in the family.