Prevenge

 The title is misleading. If you're expecting a time traveller taking control of himself as a fetus to manipulate his mom into killing the mothers of people who would eventually wrong him, that is [SPOILER] not what's happening here at all.
 No, the plot for Prevenge completely avoids that, to its detriment, by being about something else entirely. They could have milked that pun title so much more! What a disgrace.

 Ruth (Alice Lowe) is a very very pregnant murderer, first shown as she slits the throat of a sleazy-ish pet shop owner (Dan Renton Skinner). Others (including Tom Davis and Kate Dickie) will soon follow as she works her way through a list of targets. The law barely even puts in an appearance; I have no idea what the Cardiff police department ever did to Alice Lowe, but here they're portrayed as the most inept bunch imaginable. Unless more of the movie is going on inside Ruth's head than it seems. Anyhow; the why of the murders becomes clear as the film goes on, but other than that the film keeps its cards relatively close to its chest.

 It's a weird, thorny bit of gallows comedy; Clever and more than a little bit unhinged.

 The cast is uniformly good; The cinematography (by Ryan Eddleston) and an excellent soundtrack (by Pablo Clements and James Griffith) conspire to give the movie a dream-like sheen; While in general it shoots for a more realistic, washed-out, fuzzy atmosphere with a muted palette, the movie knows to throw in some really good-looking compositions and bright primary colors.

 The script is an ornery bastard. It paints Ruth as a sort of chameleon, adopting all sorts of disguises to approach her victims, and has her then spoil the effect by trying to get into their heads - almost as if she was working herself up to killing them... or to find a reason not to go through. Her ambivalence towards  the carnage becomes clearer as the film goes, and includes her having verbal spats with her unborn daughter (the little one shows no compunction whatsoever). Meanwhile, her midwife insists that the baby now controls her life. It's all very funny, a little uncomfortable, and oddly relatable... somehow.

 What's more surprising are some startling flashes of empathy, and some really affecting, low-key scenes. Lowe wrote Prevenge while she was pregnant, and then hurried through both starring and directing it before the baby came to term. I guess this unusual (pardon me) gestation shows through in a raw sense of honesty lurking beneath the film's arch, extremely wry facade. Definitely not what you'd expect out of a rampaging pregnant woman movie where a man vomits inside his wig.
 In case it's not clear- all this is a pretty roundabout way of saying I kind of loved it.