This modest and engaging story, set in a dormant south Wales town (with the unique distinction of having Welsh dialogue), has much to offer in the way of setting and cultural background. Trevor (Dafydd Hywel) works at the local movie theater as a projectionist and Mona (Iola Gregory) tends the confection stand selling ice cream. The patched-up theater is in terrible shape and the owner finally decides to put it out of its misery and shut it down. This leaves Trevor and Mona without a source of income. Desperate for a way to support his ex-wife and their three children, Trevor borrows several hundred pounds from the manager of the theater, promising to pay him back as soon as he can. Circumstances conspire to force repayment much quicker than Trevor planned, so he and Mona hit upon a scheme to raise mushrooms in the dank, dark interior of the movie house as a novel way of paying their bills.