1. At first, the man may think that the woman has really left, and he is very sad and angry. Before the movie, he was described as really unaware that the heroine was in the mirror. But he will try his best to find the hostess. She has no friends in Colombo and the landlord spends more time with her.
So I will definitely ask her that the landlord will definitely tell the man the secret room after knowing that the woman has not seen him for so long, but the man may shut her down after knowing it. The police can't find it because they have been missing for so many days. Anna found so many strange things in the room that the woman was trapped inside, and the man just pretended not to know.
In the movie, when Anna found the key, it was strange that the man didn't question it. Because he has watched countless videos left by the female host, in which the female host always carries the key. It's impossible that he didn't know the key, but he didn't ask, so Anna always took it with him.
There are two possibilities: the man knew the existence of the key and the secret room through the landlord, but he didn't know where the key was until Anna found him, but he didn't mean to save the woman.
After knowing the existence of the secret room and the key, the man hid the key. Anyway, he knows the key, but he doesn't want to save that woman.
At the end of the movie, when the key appears on the bed. A man's first reaction is to look in the mirror. He obviously knows the entrance to the Chamber of Secrets.
After watching the movie, I only thought of one sentence: if you don't die, you won't die.