The cinemas are full of them: films with no ending. Films which are just good ideas for film, just pitches. Films with no third act, maybe even no second act. Grand Piano is like this, a ramshackle attempt at classic Hitchcockian suspense that I think has no acts at all: it’s just a trailer or a pre-credit sequence. It’s more like a billboard than a film. But the introductory scenes do have a certain enjoyable flair before it all collapses into gibberish.

The idea is that Elijah Wood plays Tom Selznick, a famous classical pianist back in New York playing his first concert years after a nervous breakdown. Midway through the recital, a sniper’s laser-red dot appears on his score and a scrawled note on the sheet music tells him if he plays a single wrong note he’ll get shot. Now that’s a nice idea, but it becomes progressively clear that screenwriter Damien Chazelle and director Eugenio Mira have no plausible or satisfying ideas for developing or resolving this: it’s a crazy if occasionally engaging mess.