"The Slizzers" by Jerome Bixby is a science fiction short story written in the early 1950s. The narrative revolves around an insidious species known as the "slizzers," who can disguise themselves as humans and feed off the positive emotions of their hosts. The story explores themes of identity, perception, and hidden danger in everyday social interactions. The protagonist, Jerry, becomes unwittingly aware of the slizzers during a poker night with friends, where he starts to notice peculiar changes in his friend Joe. As the night unfolds, Jerry experiences an unsettling sensation of déjà vu, suggesting a deeper connection to the slizzers' true nature. Through a blend of casual conversation and unexpected revelations, it's revealed that the slizzers need human energy to survive, raising questions about the nature of existence and the hidden threats among us. The story leaves readers pondering whom they can trust and the unseen forces that may manipulate their lives and emotions. (This is an automatically generated summary.)