Meanwhile, Long Susan finds herself powerless to resist the ever-encroaching influence that Silas Duggan is determined to exert on her life.

Series 2 Episode 7 airs at 9pm on Monday 9 December on BBC One. To whet your appetite, here are ten teasing lines of dialogue from the episode…

» “Is that any way to greet your brother?”

» “Chief Inspector, glad to find your housebreaking skills have not gone neglected.”

» “My cuckoo in another man’s nest.”

» “I have never known what it is, to lie with a man I love.”

» “Let us discover the limits of this man’s pain.”

» “’Scuse me darling. But if you saw the pox he carried, you’d thank me.”

» “There is evil afoot, Flight, and I cannot determine from where it springs.”

» “A moment comes in a woman’s life when she may no longer deal in dreams.”

» “I feel a despair in me, and the thought of you eases it.”

» “You go back to your graves, and your doss-houses and you be sure of this: as the day begins, and the night ends, you will find me waiting for you.”

Watch the Series 2 trailer…

Are you looking forward to the episode? Let us know below…