When his surveillance of a major drug piracy ring ends in definitive video evidence, it looks like Calvino's fortunes are about to turn. The money from the job will be enough to buy out the massage parlor downstairs and restore some dignity to his place of marginal employment. But when the client dies of a heart attack and Calvino finds the body of a murdered massage girl downstairs, the authorities get suspicious of the farang who happens to be in the wrong place at the wrong time. To make matters worse, with the dead man unable to pay, Calvino is desperate and forced to take on a job he doesn't want. Calvino's new clients are three expat housewives who want him to trail their spouses. Having read "The Risk of Infidelity Index, " a guide that ranks Bangkok as the city where husbands are most likely to stray, they are rattled, haunted by the idea of their men in the bars on Patpong and Soi Cowboy. Unfortunately for Calvino, jealous wives tend to be unhappy, regardless of the results, and drug pirates aren't the type to play nice.