Ain't Misbehavin (1994)

Shy and harmless stationery shop owner Clive Quigley is shocked when, one day, wild and successful hairdresser shop owner Sonia Drysdale burst into his life and tells him the horrible news that Clive's wife, Melissa, is having an affair with Sonia's husband, Dave. The two of them team up to try and put an end to the affair. Clive and Sonia agree to not tell each spouse that they know of the affair but tried every way to stop Melissa's and Dave's meetings. Meanwhile, Clive's behaviour and Sonia's plans makes Clive's assistant in the shop, Mrs. Whales, think that Clive is coming onto her and this annoyed her husband. Also as time goes on, Dave and Melissa's relationship starts to crumble, thanks partly to Clive and Sonia's plans, and that Clive and Sonia are slowly falling for each other...