What If

At a lively party, Valais (Daniel Radcliffe) (played by Zoe Kazan)) and Chantry (played by Zoe Kazan) met, and between their eyes, their hearts fell. However, at this time, Chantry already has a stable boyfriend, Alan (Adam Driver). Unable to let go of this relationship, Chantry and Valles have reached a consensus that the two can only be friends. However, how can human emotions be so easily controlled? Although they had a three-part agreement, in the process of getting along, the lovers still couldn't resist each other's attraction and became closer and closer. One day, Chantry told Valles that he was going to work in Taiwan. Faced with the real girl who was about to part ways, what choice would Valles make?