*Edited* The team call in a specialist when they are due to come face to face with a known serial killer Rosalind Dyer,Little do they know she will be sticking around helping them,using her unique set of skills to put Rosalind and many more criminals away for good. (I will not be following the exact plot,for example i might change certain bits from Tim and Lucy to Tim and Adelaide but i will stick to the plot as much as i can)