Heartwarming / Murder in the Alps

• Behind the front cover of Anna's journal from Part 3 is a covered photo of Luigi with a flower (like the ones he gave her at the end of The Only Redemption) taped on it.
• Sven turns out to be a Kindhearted Cat Lover. Though he's not at first happy about Amy's presence in Anna's office, he's later in Ladies of the Night caught caressing her in his own office. Near the end of Grey Nature, he happily sings to her while playing with her behind closed doors.
• In No Quarter, after Anna puts Ruben's Dada portrait of Judit on a spare chair in her office, Amy the cat is seen sleeping next to the portrait of her first owner.