I saw a trailer about a (pretty sure it was from netflix) film that was about some kind of brain research. Either they had a drug or some other kind of way to manipulate human emotions. It showed a couple of clips where the subject was asked some questions (maybe). But most definitely it had a part where two people were aroused to the point they wanted to make out, and once irritated to the point they wanted to fight. I think the trailer also had something bloody when something went wrong. I saw the trailer in the last couple of years. Please help me remember it! <3
Is it Spiderhead?