The entire premise is the existence of doppelgangers, yet the two versions are not voiced (or later, written) nearly distinctive enough to always understand which is which. When the main focal point is flawed it's tough for a show to avoid being a complete failure, but there are positives which kind of save it.The alternate's motives are relatable and complex enough that there is a depth beyond just simple good versus evil. There are some gritty fight scenes and confrontations, as well as heartfelt exchanges and moments, giving the plot a breadth of emotions that some audio dramas lack.Sadly, the negatives column extends further, with issues such as the dreadful writing and voice acting of the young daughter, the shallow exploration of the protagonist's divorce and unforgivable obliviousness of characters who should be way more observant - soldiers and political employees - of the doppelgangers and their odd behaviours.Overleaper would work much better in a visual medium, such as a graphic novel or TV series.