In 2018, Kelly made her first film appearance since 2009 in "Dirty God". She plays Lisa, Jade's mother. She also plays Jaqueline Jones in the feature film Official Secrets. In 2019, Kelly appeared in an episode of "Flack", as Brooke. Later that year, Kelly portrayed Leah in four part ITV drama "Cheat". She plays DI Karen Renton in the second series of "Liar" for ITV/Two Brothers Pictures. In September, 2019, Netflix released its mini-series "" with Kelly in the role of the lead investigator.