Case Sensitive(2011)

Case Sensitive is a British crime drama that opens with a shocking discovery: Geraldine Bretherick and her five-year-old daughter found dead in their luxury home. Detective Sergeant Charlie Zailer and Detective Constable Simon Waterhouse clash over whether it's murder-suicide or something darker, while Mark Bretherick's alibi comes under scrutiny. The case grows more complex when Sally Thorne, a working mother, learns of the deaths and realizes the dead woman was married to a man she'd had a brief affair with months earlier. Against her best friend's warnings, Sally reaches out to Mark to express her condolences, setting in motion a dangerous entanglement that threatens to unravel the investigation and expose secrets that could destroy multiple families.