His and Hers by Alice Feeney

There are two sides to every story: yours and mine, ours and theirs, His & Hers. Which means someone is always lying. When a woman is murdered in Blackdown, a quintessentially British village, newsreader Anna Andrews is reluctant to cover the case. Detective Jack Harper is suspicious of her involvement until he becomes a suspect in his own murder investigation. Someone isn’t telling the truth, and some secrets are worth killing to keep.