SOCIAL worker Emily Jenkins (Renee Zellweger) and Detective Mike Barron (Ian McShane) are called to an address where a girl is believed to be in danger.
Breaking into the property, they discover Keith Sullivan and his wife Margaret attempting to roast their cherubic 10-year-old daughter Lillith (Jodelle Ferland) in the oven.
Thankfully, they rescue the tyke from a very public grilling in the nick of time.
Emily is strangely moved by Lillith’s plight and, breaking all of the rules, she allows the girl to stay under her roof, offering the youngster the love and support she has never had.
Alas, the social worker soon notices changes in the girl’s behaviour, with leads to an attack on Emily and Lillith in their home.
As the strange disturbances become more violent, Emily wonders if the Sullivans might have had good reason to want to slow roast their offspring.
Case 39 won’t surprise anyone, apart from Zellweger’s wannabe mom, who seems genuinely startled by the demonic killer in her midst.