Sarah is a free-spirited bookstore employee in a long-term relationship with her boyfriend, Kevin, a musician. Her sister, Beth, is meticulously planning her own wedding to the very detailed and accurate Andrew. When Kevin impulsively proposes to Sarah during one of his band's performances, she panics and abruptly ends their relationship. Seeking solace, Sarah moves in with Beth, who is both supportive and frustrated with her unpredictable behavior. As Sarah navigates her newfound independence, she starts to explore her own identity, separate from the expectations of others.

Meanwhile, Sarah begins a casual relationship with Jonathan, a kind and stable graphic designer, who offers her both emotional support and a new perspective on love. As she grows closer to Jonathan, Sarah must confront her own fears and insecurities about commitment. Simultaneously, Beth faces challenges in her own meticulously planned wedding, leading both sisters to reevaluate their lives and relationships. Through these parallel journeys, they begin to understand the importance of balancing personal aspirations with the expectations placed on them by society and loved ones.