Lonely Professor Fink uses science to turn himself into a manwhom women find attractive. Then, overwhelmed by theattention, he invents an algorithm to perfectly pair thelonely men and women of Springfield, realizing that scientificexploration is his true love. Meanwhile, Marge, Bart, andLisa visit Grampa for Valentine's Day and try to rescue the oldfolks from a drug-induced hallucination that allows them torelive their happiest memories.
