Ben (Glen Powell) and Bea (Sydney Sweeney) accidentally meet at a coffee shop, and their acquaintance quickly turns into a date, and the date turns into a night spent together. It seemed like everything needed for happiness. However, at the most inconvenient moment, the main characters' insecurities and prejudices take over them, and the sudden love that sparked between them fades under the pressure of overwhelming fears. Six months later, Ben and Bea meet again, this time at a wedding of mutual friends. There is no trace left of their former attraction, now they simply hate each other and, in the process, ruin the atmosphere of the celebration. In an attempt to save the event from disaster, the guests, acquaintances, and even the parents of the characters decide to help them fall in love again.