Middle-aged Maggie must find a way to get enough money for her grandson's lifesaving medical treatment. With all financial resources exhausted, Maggie tries her best to lift the dwindling hopes of her only son Tom and his wife Sarah.

When a "hostess Wanted" sign catches her eye, Maggie naively stumbles into a city sex club. The true job description is quite a surprise for the respectable, middle-class widow, even if she isn't a prude. But unskilled Maggie accepts this as her fastest way to urgently needed cash and her very last option, having already sold her own home to pay for little Olly's hospital bills.

Shy Maggie has a rough start at "Sexy World", more than just a train ride from her conservative suburb. Wisecracking colleague Luisa shows her the ropes and the two women strike up a touching friendship. Tough guy owner Miki, a real ladies' man, reveals a soft spot for dutiful Maggie, and transforms her into the much-in-demand and lucrative "Irina Palm". Maggie courageously proves to herself that she's not so old and useless after all.