I respect the whole reviews, but it isn't that bad. Personally, I enjoyed while watching and was curious to see the next episode after finishing one. However, I agree with the fact that this could be a better thriller story.
In addition, at least I wish the ending was a little bit different. You'll understand when you finish watching. As I understood Leni was the guilty one, she was the one controlling Gina's life as if she was protecting her. She was actually ruining Gina's life. You can say that Gina should have been careful about this, but... you know, it's her sister, she just wanted to believe.. So, I hope Leni will be psychologically okay, and these two sisters will be able to talk and solve their issues.
In addition, at least I wish the ending was a little bit different. You'll understand when you finish watching. As I understood Leni was the guilty one, she was the one controlling Gina's life as if she was protecting her. She was actually ruining Gina's life. You can say that Gina should have been careful about this, but... you know, it's her sister, she just wanted to believe.. So, I hope Leni will be psychologically okay, and these two sisters will be able to talk and solve their issues.