Cats come up at crime scenes, and generally there's an implication that they're just out of sight of the player at the murder scene, or that they escaped through a window before you arrived. None of them seem to have been hurt.
In general, if you're supposed to feel bad for one of the bodies you've cleaned up it's typically a woman. There's a cutscene where a woman is heard begging for her life before she's killed.
There's an eerie crimescene where some objects unexpectedly fall and the character expresses surprise, but it doesn't really constitute a jumpscare. The game can get tense but never takes advantage of that with loud or sudden scares
A hacker gains access to speakers and appliances in a "smart house" to make the residents think that it's haunted. Instead, a resident questions their sanity, unsuccessfully goes on antipsychotics, and eventually snaps.
There are frequently large amounts of empty alcohol bottle, and the aftermath of a raging party with bottles and what seems to be vomit, with recordings of very drunk people.
The Haunted level in particular has some eerie mannequin heads, one with glowing eyes. They can move places when the player isn't looking. In the "Modern Art" level, there's a secret room where you find a katana. Upon picking it up, you're directed to defeat the surrounding "enemies" while loud music blares. The enemies are series of stationary mannequins with glowing eyes that are reaching through mirrors; could definitely be startling to someone with a phobia. To avoid the latter mannequins, don't complete the TV puzzle.
Most of the gameplay is cleaning blood and disposing of bodies. Their wounds aren't really rendered in gruesome detail, but if you look closely you can see cuts and blood stains where their fatal wounds were dealt. Blood can be reduced somewhat in the settings.