Eye of the Beholder
The unexpected suicide by promising young Lt. Kwan in the plasma stream of the warp coils is baffling to all those who knew him. When Deanna visits the site for the first time, she is overwhelmed with panic and fear. It is found that while the Enterprise was being built at Utopia Planitia that an engineer named Walter Pierce found his lover embracing another man and killed them both. The guilt he felt caused him to commit suicide by throwing his body into the plasma stream. Being partially empathic Pierce’s experience was imprinted into the bulkhead. When Kwan found it he acted out that experience. Deanna Troi being empathic also feels these experiences but is stopped just in time. summary by Ex Astris Scientia
A wonderful mystery here. I loved it how Deanna was dragged into this. Okay, I’ve also heard it ridiculed many times. OTOH, I’ve also heard Star Trek ridiculed as a whole. Don’t blame them. There are those who just don’t get it, God bless them.