 Complete the following phrase:  Dr. Henry Jekyll dedicates his life to the curing of all known illnesses; however, his lecherous friend Professor Robertson remarks that Jekylls experiments take so long to actually be discovered, he will no doubt be dead by the time he is able to achieve anything. Haunted by this remark, Jekyll abandons his studies and obsessively begins searching for an elixir of life, using female hormones taken from fresh cadavers supplied by murderers 