The Object of Beauty

This story is about a ne'er do well and his girlfriend search for a thief.
American couple Jake and Tina are living in an expensive London hotel above their means, incurring a sizeable debt. When they are asked to pay a lavish dinner bill and Jake's card is declined, he suggests they sell Tina's tiny, expensive Henry Moore sculpture to cover the debt. After they hatch a scheme to claim the sculpture was stolen in order to collect insurance on it, the sculpture mysteriously goes missing.