Well, I’m giving it a chance.
12.30 mins in, cheesy but fun.
Then the assassin (don’t worry - no spoiler), sticks the glass-lifting-rubber-thingies to a pane of glass, uses some kind of massive compass to proscribe a perfect circle, and then lifts a nicely square piece of glass out of the window.
So far, so silly.
I shall persevere.
Thanks for the recommendation.
ETA: OK, at 15.00, our hero tosses the murder weapon into the river - lands straight on a Police river patrol boat. I’ll admit I guffawed. You got me.