When Eva Patterson returns home from work one day, a devastating scene awaits her. Her mother, Flora, lies dead in the bath. Beside her is a note saying only: 'Forgive Me'.
Until then, Eva always believed her family's life would be comfortable and secure - but Flora's suicide changes everything. And when Eva discovers that in her will Flora left her an artist's studio in London, she realises how little she knows about her mother's past.
When Eva visits the now derelict studio, she is shocked to find out that her mother was once a successful artist back in the 1960s. A chance encounter leads her to Phil, who agrees to help her restore the studio, as well as offering her the advice and friendship Eva so badly needs.
In the studio attic she finds a collection of Flora's paintings and old diaries, which Eva believes were purposely left for her to find. Searching for answers, Eva encounters a psychic who mysteriously warns her to beware of a 'sleeping serpent', which she soon discovers refers to a shocking crime in Flora's past.
Will discovering the truth destroy Eva's belief in everything she holds dear? And will Phil stand by Eva even when her journey leads her and those she loves into certain danger?