Tan Tarn How’s Undercover is a farce about the Internal Security Department of “an imaginary country”. The play revolves around the Head of the department, his Deputy, and their first ever female recruit – a good-looking intelligence officer called Dolly Parton Ong who is promptly renamed “Jane” in a bid to appear plainer. Jane is tasked to infiltrate a charitable organisation called The Centre which is suspected of subversive activities. The focus of her covert mission is the Centre’s suave leader, Qiang. Meanwhile, tension brews as the Deputy schemes to take over the department from his witless Head.
Tan developed Undercover during the second cycle of TheatreWork’s Writers’ Laboratory programme. On Tan’s foray into farcical writing, Tay Tong, General Manager of TheatreWorks, wrote: