I had a really bad set of nightmares last week.
The first was really fucking creepy. I ordered food to where I live and when the guy came to deliver it I recognized him. That doesn't initially seem like a particularly scary thing but it wasn't a type of recognition like he was someone I'd met before.
I recognized him with this weird familiarity and dread, like he was someone I recognized despite having never seen before, or I'd only seen him subconsciously around like he was following me, irl or in the background of my dreams. In any case I had an incredibly strong feeling that this person that I felt was so familiar wished me a lot of harm.
What happened next was that this motherfucker SMILED at me like he knew I knew and started to walk towards me. I actually woke up shouting at that point.
I then fell back asleep and had a dream about a really troubled kid I knew back in school digging up recently deceased bodies and eating them. That dream actually managed to be a lot less scary than the first one somehow and I slept through it.