When Ellen, a successful architect in her mid-thirties, becomes pregnant, she finds maternity cover in Paula: Brilliant and enthusiastic. Ellen champions her, but quickly begins to feel uneasy, as she is convinced something is not right about Paula. Are her suspicions simply a result of female rivalry and her own insecurity or do they speak to something deeper? This 3-part psychological thriller set in Glasgow examines workplace rivalry, motherhood and the issues that arise from making the right choice. Starring Morven Christie (The Young Victoria), Vicky McClure (This Is England), Richard Rankin (TV's Outlander), Neve McIntosh (TV's Doctor Who) and Dougray Scott (Mission: Impossible II).