When a vampire starts to pick off the brightest and best youngmen of the British establishment, MIO has a crisis on itshands. The Home Secretary orders Bulstrode to solve it andBulstrode appeals to Hyde. Hyde, on the other hand, wantsnothing to do with it. He's done with MIO after episode 7 andall he wants is his secret file... Although when he's taken tothe latest murder scene something catches his eye. Following atrail, Hyde finds himself face to face - and fighting - afemale vampire. This is no ordinary vampire and she challengeseverything he knows by revealing that she is his sister,Olalla. The second shock is when she reveals that Dance is notdead. Dance is being regenerated. Garson is highly sceptical.How does Olalla know all this? Well, because she was capturedby Dance as a five year old and raised by Tenebrae. Robert isdistrustful and he devises a test: if she can turn into Jekyllhe'll believe her story. Reluctantly, Olalla complies. She haslived for years as Hyde, using a monocane and blood mix fed toher by Dance, so this reversal is agony for her. MeanwhileTenebrae's plan to raise Dance is in trouble. With the parasitedestroyed, Lord Protheroe and Fedora are obliged to takedrastic measures. They release the eel-like creatures that havebeen Dance's life support to go and seek the missing organs heneeds. Now Robert decides to make a commitment to Lily andbreaks things off with Bella. So when Bella brokers a deal withBulstrode - for Robert's file - that's the last she wants tosee of Robert. But the proposal also reveals shockinginformation about Lily that is still kept hidden away fromRobert. Olalla, unable to sustain life as Jekyll, runs awayto find her secret supply of blood and monocane. This leavesRobert to track the eel-creatures alone, in pursuit of Dance'slair. Olalla arrives at the last moment to save him, but sodoes Bulstrode and MIO. Bulstrode is convinced he has finallyfound his vampire.
Fran ramps up her manoeuvres against Jac, and when she raisesthe possibility of a formal complaint from a patient's sister,Hanssen has to take her concerns seriously. But has Franunderestimated Jac's ability to fight back? Serena'sdisappointed when her daughter bails out of their plannedChristmas together. Raf and Fletch are also dreading thefestivities, but perhaps Serena has the perfect solution? Inthe first flush of love, Dominic's keen to buy the perfectChristmas present for Lee with the help of a willing patient.However, a shocking revelation leaves him reeling.
Abby goes on a date with a TV celebrity in a bid to boosttraffic to her new blog and please Barbara. Elsewhere, Jakedecides to spill a secret to Abby; Jo begins dating; andPhoebe oversees an engagement party for Delia.
Abby and Jake try and keep their secret relationship hiddenwhile her managing editor Barbara at SheShe pushes her to goout on dates to drive attention to her new blog. Delia hires awedding planner. Jo moves out of Abby's house and prepares forthe opening of her vegan bakery.
Leo and Sophia struggle to control the mysterious devicethey've built. Back in Florence, Riario awaits judgment whileLorenzo and Vanessa take their partnership to the next level.
Ash attempts to bury the book to end the Evil, but first hemust contend with other, more physical things from his past.Fisher faces a horrific change in Ash.
Kara goes toe-to-toe with Astra when her aunt challenges Kara'sbeliefs about her mother. Also, Cat is threatened with beingremoved as the CEO of CatCo after a hacker exposes her privateand damaging emails.