That one dark night

A young adult sitting at home. Alone. Watching TV at night. Suddenly some dull noise. It comes from the other apartment. I call her. Silence. After a while that blunted noise again. Our dog's hair stands on end. It's afraid. Just as me. Silence again. Immediately a bright light. It's on my uncles terrace. He is screaming loud: "I'll kill you!". The luminously light fades away. Silence. Unexpectedly the flamingly light is in our garden. Who is there?

Trying to experiment and improve my writing skills. Thanks for reading :)