As a snowstorm rages outside, Oxford high society gathers to ring in the new year at the city's most exclusive party. This is a soiree no one will forget... not least because a guest is found dead in his car the next morning. It seems the young man tragically froze to death overnight after crashing into a snowdrift — but when and coroner are called in to investigate, they discover a tangled web of secrets that plainly points to murder. With everyone telling different stories about that fateful night, only one thing is clear: several people had reason to want the victim dead. And if Trudy and Clement don't find the cracks in each lie, the killer will get away with the perfect crime.