Episode Ratings Grid

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Great

Episode Power Rankings

The peaks and the valleys. Find the essential episodes — and the ones to skip.

#1
S1E10 8.9
Episode #1.10

Ahn and Jae-in finally discover their shared history. Ji-soo wants to reinvestigate the apartment fire against her father's wishes and Seong-mo takes leave from his position.

#2
S1E12 8.8
Episode #1.12

More of Seong-mo's painful past is revealed. Lieutenant Nam's connection to the mystery is disclosed. Ahn and Jae-in discover the ghost stations.

#3
S1E13 8.8
Episode #1.13

Seong-mo confronts his father and Ji-soo gets hurt in the line of duty. Ahn finally catches Geun-taek but his psychometric powers discover a shocking secret. Jae-in interviews Seong-mo's mother.

#4 Episode #1.8 S1E8 8.7
#5 Episode #1.11 S1E11 8.7
#6 Episode #1.14 S1E14 8.7
#7 Episode #1.16 S1E16 8.7
#8 Episode #1.7 S1E7 8.6
#9 Episode #1.9 S1E9 8.6
#10 Episode #1.15 S1E15 8.6

Lowlights

#16 S1E2 Episode #1.2 8.0

While trying to proove Lee Ahn is not guilty for stealing math tests, Jae-in cames to realization that she also accused him wrongly.

#15 Episode #1.1 S1E1 8.0
#14 Episode #1.3 S1E3 8.2
#13 Episode #1.6 S1E6 8.4
#12 Episode #1.5 S1E5 8.4

The Quality Arc

Each point is an episode, plotted in order. Colored bands mark season boundaries. Look for the rise, the plateau, or the decline.

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Episode Engagement

High votes + high rating = beloved classic. High votes + low rating = notorious stinker. Low votes + high rating = hidden gem.

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