It was night, as nobody was home except you. Your parents were out, and your siblings were out of town for their studies. So you were alone. You were getting food from kitchen, as you were heading to your bedroom while trying to find something on YouTube to watch while eating, But then...

A fimilar melody came from your room—Your Phone's ringtone—but. Your phone was in your hand outside your closed room's door... Whatever there was inside was learning how to mimic your ringtone.