21-year-old Emma (Anya Taylor-Joy) is a smart girl with a head full of weird ideas. Emma's biggest hobby is to matchmake friends around her. Recently, she has set her sights on her friend Harriet (Mia Goth). Although Harriet already has a sweetheart, Emma still tries every means to recommend the weird and prominent-eared priest Elton (Josh O'Connor) to her friend. Although Emma is always immersed in romantic fantasies, she firmly believes that she will not enter into marriage. Knightley (Johnny Flynn), the younger brother of Emma's handsome and lively brother-in-law, attracts Harriet's attention, while another man named Frank (Callum Turner) begins to shake Emma's non-marriage.