Something strange happens in my house. Day #2

Hello friends of steemit I share what happened to me last night, leave me your comments because I'm more scared than before and I do not know what to do about it.
It was 4:08 in the morning, when I woke up, my cat was meowing a lot in the door of my room, as if something was there, I removed it from the door, and he returned to the door, as if called it. Was then that I take this picture.

After this I did not take another picture because I dared to open the door, I thought it could be someone but it was nobody, and my cat got aggressive, I do not know what to do about it.
If you want me to continue telling you that it is still happening in my house, leave a comment or some advice, this is already scaring me.