Strike (also CB Strike) is a British drama series based on the Cormoran Strike series by Robert Galbraith (pseudonym for JK Rowling).
In the series, Cormoran Strike (Tom Burke) is an Afghan war veteran now private investigator. He uses skills learned in the Specific Investigation Branch (military police) to solve cases that the police haven't been able to.
In the first series, The Cuckoo's Calling, he investigates the supposed suicide of a supermodel, an adoptee. He discovers it was a biological member of her family who killed her.