Lauren and Peter are back at this detective lark again as she meets the taxi driver who says he drove Lucy home the night she was murdered, will they get the answers they want from him though? Elsewhere, Roxy is determined to get answers herself from Ronnie although of course she gets nada from her cool-as-a-cucumber sister. She too then gets her detective hat on tonight but in Aleks' room where she goes snooping for clues. Although she doesn't make for much of a detective as he catches her in the act, will he come clean to her though? Poor Roxy, always with the liars.