When medical student Regan (Melissa Parker) shows up at the Mill with puncture marks in her arm she tells Emma she’s practising taking blood.

(Picture: BBC)

Sid tells Emma that multiple students have been showing up with similar marks, leading Emma to investigate the matter further, worried it might be drugs. Mo (Kay Purcell) enters the Mill, suffering from an acute allergic reaction.

Before she collapses, she mentions a ‘vampire facial’ to Emma. Emma goes to the university and catches Regan offering the same treatment to Gillian (Charlotte Weston). Regan tells Emma she’s only doing these beauty treatments to fund her dementia research.

(Picture: BBC)

What will Emma do next?

Doctors air this episode on Wednesday 17th February at 13:45 on BBC One.