New three part thriller The Replacement, starring Vicky McClure and Morven Christie, premieres on BBC One on Tuesday 28 Feb at 9.00pm.
Ellen (Morven Christie) gets pregnant after landing a big contract for her firm of architects. She hires Paula (Vicky McClure) as cover – but soon fears that she’s made a terrible mistake.
Ellen wants to get back to work quickly, but Paula thinks Ellen should be putting her baby first. She wastes no time in moving in on Ellen’s bosses, clients and friends – and Ellen fears she’s being forced out.
Everyone thinks Paula is great and Ellen is being paranoid, until a site accident puts Ellen’s suspicions into overdrive.
Pictured is Ellen played by Morven Christie.
The Replacement Episode 1 (of 3) airs on Tuesday 28 February 2017 from 9.00pm-10.00pm on BBC One.