You have to admire Alice Lowe’s (Sightseers) directorial debut for the logistical nightmare of filming it alone. As writer, director and star of Prevenge, she had the insane idea to make a low budget, satirical slasher while 8 months pregnant, making it a labour of love of the most darkly comic and macabre kind. As a pregnant woman named Ruth (Lowe) ruthlessly slices the throat of the obnoxious man who owns a reptile shop, the viewer is left wondering what her motives are – besides him being a complete sleaze. As the story moves along and the deaths pile up,…