Baker Street Wiki
Baker Street Wiki

"The Hound of the Cancer Cells" is the eighteenth episode of season two of Elementary. It first aired on CBS on 13 March, 2014.


The inventor of a breathalyzer that detects cancer is found dead. Sherlock determines that he was in fact murdered, and it likely had to do with a recent claim by a pseudonymous tipster that the inventor's research was falsified. Sherlock and Joan discover that the research was true and that the tip was false. When the wife of Hank Prince – the CEO of the company that owns the patent to Granger's research – is murdered, Joan and Sherlock conclude that Hank posed as the tipster and killed Granger to temporarily decrease the potential value of his company, so he would owe less to his wife in their divorce settlement. Meanwhile, Bell is approved to re-enter the field, and asks for help to track down a young witness who is afraid to testify against a powerful drug dealer. The old man who was protecting the young witness kills the drug dealer, but he is also killed in the process.


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Season Two navigation[]

Season Two
#01 Step Nine#09 On the Line#17 Ears to You
#02 Solve for 'X'#10 Tremors#18 The Hound of the Cancer Cells
#03 We Are Everyone#11 Internal Audit#19 The Many Mouths of Aaron Colville
#04 Poison Pen#12 The Diabolical Kind#20 No Lack of Void
#05 Ancient History#13 All in the Family‎#21 The Man With the Twisted Lip
#06 An Unnatural Arrangement#14 Dead Clade Walking#22 Paint It Black
#07 The Marchioness‎‎#15 Corpse de Ballet#23 Art in the Blood
#08 Blood is Thicker#16 The One Percent Solution#24 The Grand Experiment