An extract on #cool_capture_
It was co-written by executive producer J.H. Wyman and co-producer Graham Roland. Wyman also directed, making the episode his directional debut. He sought to write a story that had love as a central motivation, and described it as "an episode that's really close to me." Guest stars featured in the episode included Michael Massee as the villain Anson Carr, Ona Grauer as Dianna Sutter, and Michael Cerveris as September.
First airing on March 23, 2012 in the United States, "A Short Story About Love" was watched by an estimated 2.87 million viewers, a decrease from the previous episode. It received mixed to positive reviews from television critics; the villain attracted mixed reviews, and most praised the revelations surrounding a beacon that was last shown in a first season episode. In 2013, it landed on several lists detailing the best Fringe episodes of the series.
The Fringe division tracks down a series of deaths of wives shortly after the passing of their respective husbands. Discovering traces of the husbands' DNA on the bodies of the wives, Walter Bishop (John Noble) suspects that the killer is using pheromones taken from the husbands to get close to the wives, using the substances as a perfume. Further identifying castoreum within the pheromone mix, they identify the murderer as Anson Carr (Michael Massee), a former and disgruntled employee of a perfume company inflicted with a rare skin disease. They arrive at Carr's home to find another husband, already dead, in a dehydration chamber, and race to protect his wife, Dianna (Ona Grauer). When no attack comes at the wife, Olivia Dunham (Anna Torv) realizes that her husband may have been having an affair, and races to the mistress' home, stopping Carr before he can kill her. As he is taken away, he admits he was trying to discover what love was, scientifically, so that he could reproduce it and allow the entire world to share in it.
During the investigation, Olivia finds that the memories she is gaining from Peter Bishop's (Joshua Jackson) original timeline are overriding her original memories. Nina Sharp (Blair Brown) becomes concerned and suggests that Olivia talk to Walter to help reverse the memory loss. During the case, in talking with the latest victim's wife, Olivia realizes that she is truly in love with Peter. After the conclusion of the case, she admits to Nina that she will let the memory alterations continue, even if this means she will forget the times she spent with Nina during her childhood.
Simultaneous to these events, Peter has attempted to flee to New York City and points beyond to stay away from Olivia, fearing that staying near her would further erode her original memories. Walter calls him back, identifying that the Observer September (Michael Cerveris) had implanted something in Peter's eye during the events of the previous episode. The small disc reveals a nearby address, where Peter finds a stash of September's Observer equipment, including a GPS-like device that leads him to a strange pod (as shown previously in "The Arrival"). Peter is ultimately able to activate the pod, where September appears. September states the pod acts as a beacon, allowing him to return after the other Observers hid the universe from him. In response to Peter's questions about trying to return to his own timeline, September states that Peter is actually home; he was never truly erased from time as his love for his friends, and their love for him brought him back. September soon vanishes, and the pod buries itself in the ground. The episode closes as Peter and Olivia rejoin each other with a passionate kiss.