Serious passions are always running high in theater troupes. However, the brutal murder of leading actor Fenton right at the end of Shakespeare's Twelfth Night, which was presented at an elite college before the start of the holidays, is too much... Given the complex nature of the murdered man, all his colleagues may be under suspicion. Considering the circumstances of his marriage, one cannot discount some of the college teachers. Only Dr. Wintringham can unravel such a tangle... Young Ursula Frinton dies in front of the doctors of the army commission checking the health of the volunteers. The investigation establishes that she was poisoned with a huge dose of nicotine. But who is behind this crime? Her cousin, counting on a rich inheritance? Unlucky opponent? The husband they secretly married just a week ago? Or maybe a group of saboteurs is involved in the case, about which Ursula became aware?.. Doctor Wintringham begins an investigation...