The Best Man Holiday follows a group of friends who come together for the Christmas season. As they reconnect, they must confront the struggles of terminal cancer, infidelity, and more. Through their experiences, they learn the true meaning of friendship and the importance of supporting one another.
Harper is a writer who is about to get married, but his best friend reveals a shocking secret that could ruin everything. As Harper navigates his relationships with friends, family, and his domineering girlfriend, he must decide what is most important to him.