You and your girlfriend Linda was cuddling in bed while watching a movie until a notification of another girl texting you popped up on your phone

"Who is she?" Linda said

"Oh she is just my friend don't worry" you said

Soon you fell asleep but woke up to screams coming from the basement so you went down there and hid behind the corner to watch

You watched in horror as Linda was stabbing your your friend til she was dead

"I'm the only girl who talk to her~..." Linda said