When a bachelor party and a bachelorette party cross paths in Vegas, only the best man and the maid of honor can save their friends from a night of epic "mistakes."

When a bachelor party and a bachelorette party cross paths in Vegas, only the best man and the maid of honor can save their friends from a night of epic "mistakes."

Bride-to-be Claire, her sister Leslie, fun-loving Zoe, and quirky new friend Janet set off to Las Vegas for a one-night bachelorette party that turns out to be more than they bargained for. A series of unexpected adventures including, getting kicked out of a strip club, being mugged and getting pummeled by the Las Vegas’ reigning gelatin-wrestling champion, Veronica, rip them from the glitz and glamour of the Las Vegas strip and places them smack dab in Vegas’ seedy underbelly. Determined to keep their bachelorette party dreams alive, the girls band together and embark on the wildest night in bachelorette party history. Fueled by sex and booze, this raunchy, riotously hilarious, out-of-control, blow-out is, for better or worse, all caught on tape. And is destined to go down as the Best Night Ever.

Bride-to-be Claire, her sister Leslie, fun-loving Zoe, and quirky new friend Janet set off to Las Vegas for a one-night bachelorette party that turns out to be more than they bargained for. A series of unexpected adventures including, getting kicked out of a strip club, being mugged and getting pummeled by the Las Vegas’ reigning gelatin-wrestling champion, Veronica, rip them from the glitz and glamour of the Las Vegas strip and places them smack dab in Vegas’ seedy underbelly. Determined to keep their bachelorette party dreams alive, the girls band together and embark on the wildest night in bachelorette party history. Fueled by sex and booze, this raunchy, riotously hilarious, out-of-control, blow-out is, for better or worse, all caught on tape. And is destined to go down as the Best Night Ever.

爱丽丝（达科塔·约翰逊 Dakota Johnson 饰）和男友之间的感情走到了尽头，为了给这段恋情寻找新的可能性，她决定暂时离开男友，离开家乡，前往纽约闯荡。罗宾（瑞贝尔·威尔森 Rebel Wilson 饰）的个性大大咧咧，白天，她是法律事务所里衣着得体的小助理，每当夜幕降临，她便会摇身一变，成为夜场里最闪亮的女王。 　　梅格（莱斯利·曼恩 Leslie Mann 饰）早已经看穿了婚姻的本质，是一名不婚主义者，可是，一个属于她的孩子对于梅格来说却有着致命的吸引力。露西（爱丽森·布里 Alison Brie 饰）的社交圈很小，因此她将脱单的期望寄托在了虚拟的社交网络中，结果却屡屡令她失望。

爱丽丝（达科塔·约翰逊 Dakota Johnson 饰）和男友之间的感情走到了尽头，为了给这段恋情寻找新的可能性，她决定暂时离开男友，离开家乡，前往纽约闯荡。罗宾（瑞贝尔·威尔森 Rebel Wilson 饰）的个性大大咧咧，白天，她是法律事务所里衣着得体的小助理，每当夜幕降临，她便会摇身一变，成为夜场里最闪亮的女王。 　　梅格（莱斯利·曼恩 Leslie Mann 饰）早已经看穿了婚姻的本质，是一名不婚主义者，可是，一个属于她的孩子对于梅格来说却有着致命的吸引力。露西（爱丽森·布里 Alison Brie 饰）的社交圈很小，因此她将脱单的期望寄托在了虚拟的社交网络中，结果却屡屡令她失望。

讲述了一起威胁到国家利益的恶性事件的核心人物男主人公消失后发生的悬疑故事。李秉宪饰演给国家造成冲击的恶性事件的核心人物宰勋一角，孔孝真饰演…

俊美性感的安東是位「家庭主夫」，沒想到卻遭老公拋棄，失去情感與經濟上的支柱，他只好寄居好友的房子、在麵包店打工，同時上糕點學校，身邊更不乏性愛與追求者。正當他一步步邁向獨立之際，帥氣迷人的攝影師闖進他的生活，前任情人也想挽回他，安東該怎麼解決這愛情難題？義大利性感新星賈恩卡洛科馬雷首部電影演出，即獲得羅馬世界電影工廠影帝榮耀。

俊美性感的安東是位「家庭主夫」，沒想到卻遭老公拋棄，失去情感與經濟上的支柱，他只好寄居好友的房子、在麵包店打工，同時上糕點學校，身邊更不乏性愛與追求者。正當他一步步邁向獨立之際，帥氣迷人的攝影師闖進他的生活，前任情人也想挽回他，安東該怎麼解決這愛情難題？義大利性感新星賈恩卡洛科馬雷首部電影演出，即獲得羅馬世界電影工廠影帝榮耀。

讲述了以单身生活为题材的随笔为媒介，相克男女再次提起对过去爱情的伤痛并展开的一系列故事