It’s hard to believe Motive‘s final ride is almost over. Yet Tuesday’s new instalment, “Interference,” represents Episode 6 out of 13. It’s been a pretty wild ride so far, with the stops pulled out on stories and great work done by the regular cast and guests appearing. Tonight’s episode is no different; read on for some non-spoiler teases.

Sara Canning alert!

Fans of the cancelled-way-too-soon Remedy get their fix of Sara Canning, who guest-stars as Tracy, a suburban mom who is dispatched in a most memorable—and gruesome—way. She’s not your typical victim either….

Walking Dead guest star alert!

I was wracking my brain trying to figure out where I’d seen Alicia Witt recently when it dawned on me: she played Paula on The Walking Dead. Anyway, she’s Cindy, tagged as the murderer in “Interference,” and her story takes a turn involving Tracy’s son, Owen. Witt brings a lot of humanity to Cindy and by the time you learn her backstory, you can’t help but feel badly for her.

Lucas goes over a line

Good guy Lucas is always by the book—he even ended a budding relationship because the woman was a murder witness—and he definitely crosses a line on Tuesday. His heart is in the right place, but it’s the wrong move nonetheless.

Mazur confides in Angie

Something has been going on with Paula Mazur for the past couple of weeks—whispered phone calls and rushing to change the subject—but all becomes clear … and complicates matters for everyone.

Shout out to Vij’s

There is a nice mention of Vikram Vij’s iconic Vancouver restaurant. Now I want to have dinner there. Or at the very least the bacon doughnut Angie was eating.

Motive airs Tuesdays at 10 p.m. ET on CTV.