S7, E4: Signor Zamba is murdered by a member of 'The Red Circle'. Emilia and Gennaro escape from Gorgiano, the leader on a liner and in love with Emilia. Back in England, Gorgiano murders Enrico Firmani in his pursuit of the two runaways but his luck seems almost up. Sherlock Holmes is asked to investigate Mrs Warren's strange lodger, 'Emilia', which paints the picture of this strange case. Has Gorgiano's luck really run out?