So who killed Cinnamon? Six weeks ago we saw the strangled sex-worker – packed in a pink suitcase – pushed into Bondi Bay. The finale of Top of the Lake: China Girl withheld enlightenment. Puss, the chief suspect, denied responsibility. Why would the baby-farmer destroy such a valuable (pregnant) asset?

Val McDermid has written close on 30 award-winning thrillers and suspense novels, in four series, since the late 1980s, all of them featuring a lead female protagonist. She herself worked as a journalist and a crime reporter, and the atmosphere is grittily realistic.

Readers have been committed fans since 1992, when the sometime crime reporter Michael Connelly turned novelist.

Television dramas about catastrophic events in broken Britain are meant to be cathartic. They knead the collated facts into the shape of drama for millions to absorb and understand. Then we all somehow move on, sadder but slightly wiser. The Murder of Stephen Lawrence. Hillsborough. The Government Inspector. And still they flow onto the screen: only recently there’s been Damilola: Our Loved Boy, The Moorside and Little Boy Blue.

Was it just a coincidence that budding serial killer Sam attended Ripley Heath High? Probably not. Born to Kill, written by Tracey Malone and Kate Ashfield, was keenly aware that it followed in the bloody footsteps of both real sociopaths such as Harold Shipman and fictional ones such as Patricia Highsmith’s Tom Ripley. And what a dance it led us!

So here’s the thing: a heavily pregnant woman is hanging by her ankles above a raging torrent. Two teens, one with a broken arm, are stuck down a well. And 15 miners, deep below ground, take refuge from a fire in an emergency chamber, unaware it has been sabotaged by the serial killer among them, who then, using “a gadget”, proceeds to switch off the mine’s pumps so they will all slowly drown.

Cop a load of that, then. Hana Reznikova is serving time for triple murder. Ted Hastings is on permanent gardening leave. The Huntleys have renewed their wedding vows on a family trip to Disneyworld. Just kidding. This is a Reg 15 alert to advise you that the following paragraphs contain almost nothing but spoilers.

Within seconds – literally seconds – of Unforgettable it becomes apparent that this is the kind of film that in the late Eighties and Nineties used to be referred to as “straight to video”, a label that covered a plethora of trashy, sexist, by-the-numbers psycho and erotic thrillers that beat a hasty route to Blockbuster. To actually see one in the cinema, released by a major studio, is a disconcerting experience.

An Egyptian/French co-production directed by Egyptian film-maker Mohamed Diab, Clash is a fevered, chaotic attempt to portray some of the tangled undercurrents that fuelled Egypt’s “Arab Spring” and its subsequent unravelling.

“Take your pick. Who shall we talk to first?” DI Alec Hardy (David Tennant) and DS Miller (Olivia Colman) had their three prime suspects waiting for them in custody.