Tha teagasg ceimigeachd san ard-sgoil a' cordadh ri Sarah Chaimbeul, ach tha tubaist san deuchainn-lann a' toirt oirre cuimhneachadh air rudeigin uabhasach a dh'eirich dhi san oilthigh, rud a leig i air diochuimhne. Tha an daimh eadar i fhein agus a ceile Tearlach air tuiteam as a cheile agus chan eil fhios aice an urrainn dhi earbsa a chur sna bana-charaidean aice, no na cuimhne fhein. An accident in the school chemistry lab uncovers a hidden memory that shatters Sarah Campbell's confidence. As if it isn't bad enough that her relationship with her boyfriend has broken down, she doesn't know...