The Bill
We Are Family, Pt. 1
S24 E39:
Sally and Beth discover a man, Alan Marlowe, found badly beaten had argued with his runaway daughter Lucy the night before. As the team uncover some interesting facts relating to the investigation, Beth develops a soft spot for the girl, but can't get much out of her about the incident and her touchingly protective boyfriend Mark denies suggestions he might be involved. The family clearly have a lot to hide and Sally warns Beth not to get personally involved.