Embark on a year of murder and mystery. It begins at Christmas with a party and a poisoning, then blossoms into spring with sudden death at the Easter Parade. With a killer in the crowd, the Fourth of July is no picnic, and the calendar is overbooked with corpses when death is in season. Here are four cunning cases that leave everyone guessing. When it comes to sleuthing out a clever solution, only Nero Wolfe has a clue.