How to Lose a Guy in 10 Days

Andie Anderson, a talented writer at Composure magazine, feels increasingly trapped in her role. She is compelled to write formulaic 'how-to' articles that focus on inconsequential topics, leaving her craving more meaningful work.

Following her friend Michelle's recent breakup, Andie's perspective begins to shift. Inspired by her friend's emotional turmoil, she decides to explore deeper themes in her writing.

Motivated by her new insights, Andie devises an article titled 'How to Lose a Guy in 10 Days.' This ambitious piece aims to validate her theory that needy behavior leads to relationship failures.

Benjamin Barry, an ambitious advertising executive, is struggling to secure a high-stakes diamond account. During a night out, he boldly wagers that he can make any woman fall in love with him within ten days.

As fate would have it, the paths of Andie and Ben cross, though neither is aware of the other's hidden agenda. Ben's colleagues plot to introduce Andie as the woman he needs to charm for his bet.

Determined to drive Ben away, Andie implements various outrageous strategies to test his affections. From canceling a Knicks game to sneaking pets into his life, she tries hard to fulfill her article's premise.

In a twist to push Ben away, Andie creates a scene at his poker night. Her friends suggest couple's therapy, and she enlists Michelle to act as a therapist, hoping to uncover Ben's true feelings.

Despite Andie's efforts to end things, Ben invites her to meet his family on Staten Island. This weekend becomes a turning point as they reveal more of their genuine selves, starting to build a real connection.

Andie and Ben make a memorable entrance at the company ball, showcasing their apparent romance. Speculation about Andie's true intentions begins to surface, putting their relationship at risk.

At the ball, Ben learns from Lana about Andie's article, which fuels his sense of betrayal. Meanwhile, Andie grapples with her conflicting feelings as she prepares to enact her plan to sabotaze their relationship.

The emotional build-up culminates in a public confrontation between Andie and Ben. Their breakup reverberates through their friend group, leaving both shattered and longing for what was lost.

With news circulating that she is leaving Composure for a new job, Andie prepares to start anew in Washington D.C. As she departs, her heart is heavy with the profound loss of her connection with Ben.

As Andie leaves, Ben races to intercept her taxi, desperate to reconcile. This moment of urgency prompts him to finally confess his feelings, leading to a heartfelt exchange.

In the dwindling light, as the taxi drives away, Andie and Ben share a tender kiss. This farewell hints at the rekindling of their love and the promise of a new beginning together.