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Both are big suspense dramas and both the same concept of deceiving your partner in a way. Also, the main characters have quite the past.
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![](https://i.mydramalist.com/6vDjKt.jpg)
Honestly when i watched edge of innocence i couldn't help but think about perfect proposal, because both give that really suspenseful, mysterious vibe. Plus, both the leads in both the movies have a very ambiguous relationship and both plots take very unexpected turns. Not your ordinary romances for sure, so if you like that i totally recommend giving it a try !