In the blink of an eye

Detective Chief Inspector Kat Frank knows a lot about loss. A widow, Kat is an investigator who trusts her instincts. She’s been chosen to lead a pilot programme that includes an AI assistant, Lock. But Kat's instincts often clash with Lock's logic. When Kat's boss decides to reopen two cold cases of missing persons, Lock is the only one who can help Kat get the information she needs as quickly as possible.