Four horny husbands plot to send their wives on a day trip to Thailand, freeing themselves up for a 14-hour binge of Viagra-fueled infidelity; guided by Tin, the group leader, they strike out time and time again, eventually arousing the suspicions of their spouses. Director Edmond Pang gets a lot of comic mileage out of a ridiculous premise—his appropriation of motifs from Hong Kong gangster flicks, among other genres, is especially good. The plot was borrowed from a 1969 comedy, Wise Wives and Foolish Husbands, and some of the humor has a shrillness one associates with the early stages of the sexual revolution, but there's a lot here that's genuinely funny. With Eric Tsang and Jordan Chan (2003). In Cantonese with subtitles. 98 min.