An American thriller; A dark, tawdry tale of a confident, contemptible young advertising agency archetype who dates women for sexual gratification using a gamified dating app. The film is most similar to Clint Eastwood's "Play Misty For Me" in the way the story unfolds: one night stand followed by avoidance, obsessional tendency before a second night; female becomes antagonist and won't stop. In the end, the theme is not one of portraying the excesses of masculinity in the digital meat market, nor that there will always be one crazy person out there, but that we are good judges of our own mistakes but a poor judge on the mistakes of others. The film is at least a believable take on the dark side of modern dating, showing the dangers of online engagement and it stays clear of a typical storyline where villians are set up to be knocked down. It's surprisingly effective as a thriller despite its narrow scope. My verdict, NOT sideswipe.