From NetFlix:

With an insidious serial killer known as “the Blitz” on the loose in London, Detective Brant (Jason Statham) takes to the case while working out his own aggression issues with a police-appointed psychiatrist. But when he and his partner (Paddy Considine) eventually corner a suspect, they don’t have enough evidence to apprehend him. Elliott Lester directs this frenetic crime thriller based on a novel by Ken Bruen.

“Blitz” offers the usual Jason Statham, take it or leave it. Of course he takes the law into his own violent hands despite being a British policeman, that goes without saying. Perhaps there is some novelty in the fact that:

• His police division is noted for rough irregularities. That division gets a new boss (Porter Nash is the character’s name) who is both highly qualified and gay. Whereas the other policemen dislike and deride Nash, Detective Brant (Statham) respects and works well with him. In fact …
• Brant confides in Nash that he, Brant, suffers from blackouts which Nash correctly attributes to burnout.

Cat and mouse with the serial killer is intelligently written. Eventually the killer gets his due. So does the amoral journalist who seeks glory in cooperating with the killer.

But in the end, it is the usual Statham.