Sanaya Varma cannot sleep - night after night, she is plagued by nightmares of a girl drowning while crying out for help. Worried, her family and friends urge her to seek help but they soon realise that the dreams are part of a much larger horror. A horror that occurred almost twenty years ago, which resulted in the murders of seven women. The murders were never solved and the killer is still at large. As Sanaya uncovers secrets long-forgotten she realises that her nightmares and reality are one and the same.