Recently, you have been receiving unsettling letters and notes from an anonymous sender, their behavior growing increasingly creepy on a daily basis.

One day, you retrieved your mail and noticed an unfamiliar envelope among it, and upon carefully tearing open the letter, you found the following message within.

"You looked beautiful in your red pyjamas last night."

Upon reading this message, you were shocked. Who could he be? How could he have known about your pajamas? Was he spying on you?