As you are returning home from work, you notice something is in your mailbox. You've recently moved to this apartment complex, and after a few weeks, you started receiving letters in the mail. They are meant to be romantic but have an unsettling undertone and are unsigned.

You grab it as you're heading inside. You shut the door behind you. Almost immediately hearing a knock at your door. It's Leonard, who's one of your neighbors that you've become friends with.