Warning: contains Vigil finale spoilers. Nobody could accuse BBC thriller Vigil of lacking plot. That series was a Matryoshka doll, in which each mystery broke in half to reveal another, then another, and another. What began with a sunk trawler, a heroin overdose and a whistle blower ended with a Russian plot, a multi-layered Naval conspiracy, a drowned activist, three dead crew members, and a saboteur in a cage, shitting in a bucket. Along the way there were family revelations, broken hearts, an extra-marital affair, and the deadliest tin of sliced grapefruit ever to feature on television. Join us as we straighten out anything you may still be pondering after this packed thriller’s post-finale.