Love Next Door is a Korean drama about two childhood friends, Seok-ryu and Seung-hyo, who rekindle their relationship after Seok-ryu returns to Korea from the US. Their mothers are best friends and constantly compete about their children's achievements, adding a layer of playful tension to the pair's interactions. Initially, they bicker like old times, but their closeness deepens as they navigate personal and professional challenges. The series explores themes of overcoming adversity, finding love, and appreciating family, with a focus on their unique relationship amidst their quirky personalities.