About The Film

After her mother’s death, Cass Milligan returns home for the first time in years, only to find the house isn’t done with her. She’s convinced it’s haunted. Her twin brother thinks she’s unraveling. As buried memories surface, they must uncover the truth before the past swallows her whole.

Running Time: 87 minutes

Aspect Ratio: 16:9

Color / USA / English / 2025

Genre: Psychological Thriller / Sci-Fi / Drama

Production Company: Houndstooth Studios / www.houndstoothstudios.com

Meet the Team

Get to know the small but mighty “Between Two Waves” Cast & Crew.

  • Courtney Sposato is an editor, writer, and director from Harrington Park, NJ. Their short film The Blake premiered at the 2023 Big Sky Documentary Film Festival and was named one of the “Hottest Shorts of Hot Docs.” It went on to win Best Documentary Short at the Brooklyn Film Festival and screen at Seattle International Film Festival, Atlanta Film Festival, HollyShorts, and more. A previous short received international distribution and garnered 145K+ online views during its premiere.

    She currently serves as a Senior Video Editor at Paramount+, and previously held the same role at Showtime, where she earned five Clio Awards for her work on Yellowjackets and other prestige series.

  • Mark is an award-winning designer and half of the married, Emmy-nominated filmmaking duo The Sposatos. His first feature screenplay made Top 2% on Coverfly's Red List, Top 10% at Nicholl, Semifinals at the PAGE Awards, and Finals at ScreenCraft. A junkie for hard-hitting, deep-cutting speculative fiction, Mark focuses on big ideas and unforgettable characters.


    He enjoys teaching his 5-year old daughter about String Theory, trips to the movie theater, classic Sci-Fi novels, and listening to lots of really good music.


  • Cass Milligan

    Koko’s acting life was born and raised in NYC, specifically at perfect little Pace University where she obtained a BFA in Acting as well as a degree in Psychology and Art. She spent a few years running wild around the city working with some amazing, talented, and bizarre people on wonderful projects. In 2012 she moved to Sweden (long story), met up with some fantastic artists, and started a theatre company, performing in both in Sweden and Turkey! Now in Los Angeles, she continues to meeting new awesome artists and work on fantastic projects.


  • Mara

    Mara Beier is an actress, singer, and filmmaker based in New York City. She made her Off-Broadway debut in Axis Theatre's world premiere folk musical, Solitary Light, before transitioning into film and television. Mara is a graduate of the One Year Conservatory at T. Schreiber Studio for Film & Theatre and holds a Bachelor of Music degree in Vocal Performance from the world-renowned Berklee College of Music in Boston. Her directing debut, Away, co-directed with producing partner and brother, Matthew J. Beier, won Best Sci-Fi Short Film at the 2023 Austin Revolution Film Festival. She is a member of the Actors' Equity Association.


  • Mrs. Jarecki

    Can be seen in “Billions” and “Orange Is The New Black”

“We filmed this on a micro-budget, over the course of 13 days, with a rotating crew of less than 5-6 people each day. We wanted to see what we could create using just the resources we had. “Between Two Waves” tells the story of two estranged siblings who come back together to settle their mothers estate after her passing. Using details from director Courtney Sposatos family history, we created a sci-fi horror drama about generational trauma and the importance of sibling relationships.”
— The Sposatos


  • Tate Milligan

    Dave Coleman grew up playing in the lush fields of New Jersey, where he could often be found making unwatchable films and plays with his friends. Today, he still makes his way through life playing on screen and stage. He loves everything about the process, history, and future of filmmaking and acting, and also enjoys the occasional actor's chore of writing about himself in the third person. 


  • Mary

    Deana Joyce DiCosimo is an American actor based in Philadelphia / New York. She began acting in 2023 following a 30 year career as a genetic engineer and manager of biotech projects. She was born in Honolulu, Hawaii and grew up in Pensacola, Florida. Deana's formal education consists of a Master of Science degree from Pennsylvania State University and a Bachelor of Science degree from Florida State University.


  • Young Cass

    Can be seen in “Smile 2”, and the upcoming “Eleanor The Great”

  • Brian Harnick

    GAFFER

  • Alex Morales

    BEST BOY ELECTRIC

  • Susan Spencer

    PRODUCTION DESIGNER

  • Rich Patricia

    On Set Sound Recordist

  • Bethany Carlisle

    SPECIAL EFFECTS MAKEUP