The Long Island Serial Awesome: A Mother's Hunt for Justice informs the tale of Mari Gilbert's look for the fact behind what occurred to her little girl Shannan, an at some point escort that disappeared after a 'date' on Long Island. After Shannan (Katharine Isabelle, Hannibal) stops working to come residence, her mommy Mari (Kim Delaney) understands something is horribly incorrect. Begging to authorities to take her problems seriously, she keeps pressing the cops for answers. Mari's insistence that her child not be neglected at some point causes a scary concealed on Long Island for more than a years-- 19 bodies of young women found buried in superficial graves along Ocean Parkway in the location of Jones Beach State Park.