Dirty 30

Kate Fields, a dental assistant, feels trapped in her mundane love life, characterized by tedious blind dates and evenings spent alone. As she nears her 30th birthday, her discontent grows, especially as her friends seem to be moving forward with their lives.

As Kate's birthday approaches, her friends gather together for Taco Tuesday, sharing letters they wrote to their future selves that depict hopes of success and happiness. This gathering heightens Kate's feelings of inadequacy as she realizes her own goals seem out of reach.

To cheer up Kate, Charlie and Evie organize a surprise birthday party at Evie's in-laws' empty house. Their goal is to bring old friends together and create a fun environment, igniting anticipation for a night of festivities.

Evie worries about Oliver, a teenager who might spoil their plans, and invites him along with his crush Kinsey and her brother Richard to keep things under wraps. This decision creates an unexpected blend of adult and teenage dynamics at the party.

As the party kicks off, Kate's boss, Jules, arrives unexpectedly with a date, intending to matchmake him with Kate. The atmosphere becomes lively, but the energy changes with the arrival of Ashley, a person known for stirring up trouble.

Despite initial hesitance, Kate enjoys the party atmosphere as she reconnects with friends. She shares engaging conversations with Dan, her potential love interest, deepening their connection amidst the lively festivities.

Evie faces her ex-boyfriend Ben during the celebrations, creating an awkward moment. Their brief interaction highlights the tensions that linger from past relationships, causing a distraction amidst the party's excitement.

The mood darkens as Charlie faces humiliation from Peter during a betting game, confirming Claire's worries about gambling. As Charlie rushes out in embarrassment, the rest of the party begins to unravel, creating an unsettling atmosphere.

Evie uncovers a shocking detail about Ben’s obsession for her when she sees his face tattooed on his skin. This revelation leads her to kick out the rowdy teenagers, indicating a turning point in her personal journey.

Moved by the night's events, Kate, Charlie, and Evie decide to enact a revenge prank on Ashley, culminating in a wild toilet paper escapade at her home. Their playful scheme serves as an outlet for their frustrations and bond further as friends.

Chaos erupts when Ashley unexpectedly injures her tooth during the prank. Kate steps in to help, showcasing her skills and reinforcing her nurturing nature, but the moment of triumph is clouded by the arrival of the police.

As the police arrive, the trio finds themselves arrested, culminating a chaotic and unpredictable night. This predicament highlights both the absurdity and the consequences of their actions, reinforcing their bond through shared adversity.

In a twist of fate, Todd intervenes to get Kate and her friends released from jail, thanks to Dan’s efforts. This moment signifies the shifting dynamics in their relationships and the emerging support systems.

Post-arrest, Evie gathers the courage to announce her intention to divorce Todd, signaling a profound change in her life. Meanwhile, Kate and Dan address past misunderstandings, reigniting their connection and revealing the progress they've made.

The story culminates in the celebration of Charlie and Claire’s engagement, showcasing growth in their relationships. Kate embraces her accomplishments in her job and her budding romance with Dan, signifying a new chapter in her life.