I am a medical student and I only noticed one point
Corneal transplantation does not require matching, which makes me suspect that the last two outcomes are the lies of the male protagonist
1. The first type of doctor and he passed through a tree like the liver. The doctor said that if you match the heroine's match, maybe you will see the light again. But he also said that the blood type of the double killer is a rare Rh type. Moreover, corneal transplantation does not require matching. Even if the male protagonist does not know this, he will think that the two of them are not matched. The male protagonist begins to realize that the doctor is cheating him, but he is actually selling his organs.
2. I won’t say much about the second ending. It’s a male editor. As for why other posts are also very clear.
So I think the two endings presented in the movie are fake. The most likely ending is that the hero kills the doctor.
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