Oh, look, another 'non-existent fandoms' fic! Which is probably just as well; this is quite possibly the nastiest thing I've ever written. Although in my defense, most of it is entirely consistent with the movie. But I think fandom has finally taken my last qualm.
ETA 18th August 2013. Chinese translation by the lovely
mu3lilywhite may now be found
here.

Title: His Brother's Keeper
Fandom: Wreckers (Cumberbatch!fic)
Parings: David/Nick/Dawn (including all permutations thereof)
Rating: NC-17
Word count: 3,200
Movie summary: Married couple David (Benedict Cumberbatch) and Dawn (Claire Foy) have moved from London to settle in David's village birthplace, and are trying, without success, to start a family. When David's brother Nick (Shaun Evans) unexpectedly arrives back from the army, he brings with him childhood secrets and stories about David and his friends that destabilise everything around him.
Disclaimer: Nothing belongs to me.
Warnings: Let me count the ways. Dub-con, incest. Further implied: underage sexual abuse, emotional abuse, violence. Contains other disturbing themes as well, but no explicit violence.
Beta: the unsquickable
evila_elf, who shouldn't put ideas into my head.
Notes: Wreckers is another of those movies that left me cold to begin with, and then crept up on me when I wasn't looking (see also:
Third Star). I really started writing this as a way of processing some of the questions that lingered from watching the movie. It's just that all the answers I came up with were very, very ugly. Okay, and somewhat porny.
( His Brother's Keeper )