Emma (Zendaya) and Charlie (Robert Pattinson) are making the final arrangements for their wedding.  Indulging a little too much on the wine options at the venue, they sit with the best man and bridesmaid, Mike (Mamoudou Athie) and Rachel (Alana Haim), respectively.  To help break the pre-wedding nerves, Rachel suggests that they tell each other what the worst thing they have ever done…